We've searched the internet and found the largest collection of On30 Scale trains for sale is on eBay. Below are the listings for 'train scale'.

RS O On3 On30 SEQUOIA SCALE MODELS BRANCHLINE SAND HOUSE AND BUCKET CRANE KIT
RS O On3 On30 SEQUOIA SCALE MODELS BRANCHLINE SAND HOUSE AND BUCKET CRANE KIT
$32.00 (3 Bids)
Time Remaining: 7h 27m
O SCALE On3 On30 BANTA MODEL WORKS 6153 Oakboro Hay  Grain
O SCALE On3 On30 BANTA MODEL WORKS 6153 Oakboro Hay Grain
$132.00
Time Remaining: 7h 37m
Buy It Now for only: $132.00
Suncoast Models 004 148 O Scale Logging Camp Craftsman Kit On3On30
Suncoast Models 004 148 O Scale Logging Camp Craftsman Kit On3On30
$56.00 (8 Bids)
Time Remaining: 7h 47m
CHB Models VB 630 148 O Scale Vertical Boiler Kit On3On30 LoggingMachinery
CHB Models VB 630 148 O Scale Vertical Boiler Kit On3On30 LoggingMachinery
$54.95
Time Remaining: 7h 47m
Sierra West 302 148 O Scale Tool Shed Craftsman Kit On3On30
Sierra West 302 148 O Scale Tool Shed Craftsman Kit On3On30
$182.50 (5 Bids)
Time Remaining: 7h 47m
Wheel Works WW 110 148 O Scale On3 Rail Truck Kit OOP
Wheel Works WW 110 148 O Scale On3 Rail Truck Kit OOP
$29.95
Time Remaining: 7h 47m
KMP Models O Scale Steam Powered Sawmill w Planer LumberLogging Interior MIB
KMP Models O Scale Steam Powered Sawmill w Planer LumberLogging Interior MIB
$129.95
Time Remaining: 7h 57m
Old Ford Logging Truck custom weathered lot 4  O SCALE  ON30
Old Ford Logging Truck custom weathered lot 4 O SCALE ON30
$118.00
Time Remaining: 8h 50m
RS O On3 On30 COLORADO SCALE MODELS 475 LEAVERITE MINE CRAFTSMAN KIT
RS O On3 On30 COLORADO SCALE MODELS 475 LEAVERITE MINE CRAFTSMAN KIT
$93.47 (5 Bids)
Time Remaining: 9h 14m
O On3 On30 GRANDT LINE 3412 GRAMPS WORKSHOP 1 48 SCALE STRUCTURE DIORAMA KIT
O On3 On30 GRANDT LINE 3412 GRAMPS WORKSHOP 1 48 SCALE STRUCTURE DIORAMA KIT
$29.95
Time Remaining: 11h 41m
ULRICH COLLECTION O SCALE 1 48 On3 MODEL T FORD OIL TANKER ALL METAL
ULRICH COLLECTION O SCALE 1 48 On3 MODEL T FORD OIL TANKER ALL METAL
$49.99
Time Remaining: 22h 56m
Buy It Now for only: $49.99
Logging Camp Cook House Kit Scale Model Masterpieces Yorke Fine HOn3 NEW
Logging Camp Cook House Kit Scale Model Masterpieces Yorke Fine HOn3 NEW
$51.65
Time Remaining: 23h 15m
Buy It Now for only: $51.65
Two Track Logging Steam Locomotive Shay custom weathered On30 scale lot 4
Two Track Logging Steam Locomotive Shay custom weathered On30 scale lot 4
$325.00
Time Remaining: 1d 6h 59m
Buy It Now for only: $325.00
On30 or O scale Steam Donkey Logging Sled custom weathered lot 7
On30 or O scale Steam Donkey Logging Sled custom weathered lot 7
$98.00
Time Remaining: 1d 7h
Buy It Now for only: $98.00
Bar Mills 0454 O Scale Bulls Salvage Craftsman Kit
Bar Mills 0454 O Scale Bulls Salvage Craftsman Kit
$79.95
Time Remaining: 1d 7h 47m
RS Laser Kits 1031 O O Scale 1880s Old Town Shop Craftsman Kit
RS Laser Kits 1031 O O Scale 1880s Old Town Shop Craftsman Kit
$49.95
Time Remaining: 1d 7h 47m
Wiseman Model V 16 148 O Scale AHD Small Donkey Engine Kit On3On30 2 Spool
Wiseman Model V 16 148 O Scale AHD Small Donkey Engine Kit On3On30 2 Spool
$54.95
Time Remaining: 1d 7h 47m
Bar Mills 114 O Scale Jebediahs Carriage  Wheel Repair Craftsman Kit
Bar Mills 114 O Scale Jebediahs Carriage Wheel Repair Craftsman Kit
$60.95 (2 Bids)
Time Remaining: 1d 7h 47m
McCabe Lumber O Scale 3 IN 1 Kit Logging Mining Cabins Shed Craftsman Kit
McCabe Lumber O Scale 3 IN 1 Kit Logging Mining Cabins Shed Craftsman Kit
$29.95
Time Remaining: 1d 7h 47m
O On3 On30 1 48 SCALE WISEMAN MODEL SERVICES JI CASE STEAM TRACTION ENGINE KIT
O On3 On30 1 48 SCALE WISEMAN MODEL SERVICES JI CASE STEAM TRACTION ENGINE KIT
$149.95
Time Remaining: 1d 22h 42m
Buy It Now for only: $149.95
BEMO 4294 607 617 HOm SCALE CODE 70 RIGHT  LEFT POINT TRACK 95 degree 270mm ng
BEMO 4294 607 617 HOm SCALE CODE 70 RIGHT LEFT POINT TRACK 95 degree 270mm ng
$71.66
Time Remaining: 2d 3h 22m
Buy It Now for only: $71.66

Other On30 Scale train items recently purchased through this site:

Suncoast Models 004 148 O Scale Logging Camp Craftsman Kit On3On30
O SCALE On3 On30 BANTA MODEL WORKS 6065 Crossing Shanty
Bachmann On30 Scale Train Passenger Coach Observation Burgundy Black 26201
O SCALE On3 On30 WISEMAN MODEL SERVICES WESTMINSTER KEROSENE LOCOMOTIVE KIT
Arnold N Scale 7097 Lighting Generator New in Original Box
RS O On3 On30 COLORADO SCALE MODELS 475 LEAVERITE MINE CRAFTSMAN KIT
PECO Streamline On30 Scale FLEX TRACK 4PCS 36 Length Ea SL 500 NEW Mint
O Scale Logging Truck custom weathered hand crafted from historic pictures
O SCALE WISEMAN MODEL SERVICES GRAND CENTRAL GOLD MINE INTERIOR KIT On3 On30
Western Scale Models M 51 The Rowe Inclined Shaft Headframe Hoist House Kit
Shinohara 4 Left Hand Turnout HOn3 Scale NOS
KMP Models O On30 Scale Craftsman Logging Kit Steam Sawmill with Planer New
Logging Camp Portable Bunk House Kits Thomas Yorke Scale Model Masterpieces HOn3
ULRICH COLLECTION O SCALE 1 48 On3 MODEL T FORD BUS ALL METAL
Western Scale Models M16 Blacksmith Shop SEALED Kit O On3 0n30 1 4 Scale
F G scale BANTA MODEL WORKS 8111 Roubies Saloon
Bachmann On30 Scale Train Stearns Heisler DCC Equipped Midwest Quarry 28806
G scale BANTA MODEL WORKS 8065 Crossing Shanty
O SCALE On3 On30 BANTA MODEL WORKS 6153 Oakboro Hay Grain
O SCALE 1 48 WISEMAN 1914 MODEL T FORD FIRE TRUCK KIT NM 906 NATIONAL MOTOR CO
KMP Models O Scale Steam Powered Sawmill w Planer LumberLogging Interior MIB
1 48 O SCALE On3 On30 WISEMAN MODEL SERVICES FORDSON STYLE FARM TRACTOR KIT
Bachmann On30 Scale Train Whitcomb 50 Ton Yellow Black Stripes 29203
O SCALE On3 On30 WISEMAN MODEL SERVICES LOGGING OR MINING CAMP 4 CABIN SET KIT
On30 or O scale Steam Tractor Logging Diorama custom weathered handcrafted