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 set scale'.

O SCALE On3 On30 WISEMAN MODEL SERVICES LOGGING OR MINING CAMP 4 CABIN SET KIT
O SCALE On3 On30 WISEMAN MODEL SERVICES LOGGING OR MINING CAMP 4 CABIN SET KIT
$89.95
Time Remaining: 2d 14h 33m
Buy It Now for only: $89.95
HAWTHORNE VILLAGE SPIRIT OF AMERICA EXPRESS COLLECTION TRAIN SET OF 9 ON30 Scale
HAWTHORNE VILLAGE SPIRIT OF AMERICA EXPRESS COLLECTION TRAIN SET OF 9 ON30 Scale
$229.99
Time Remaining: 4d 13h 27m
Buy It Now for only: $229.99
Evergreen Hill Designs 5002 1 4 148 O Scale The Woodsman Set Logging Saws Kit
Evergreen Hill Designs 5002 1 4 148 O Scale The Woodsman Set Logging Saws Kit
$29.95
Time Remaining: 5d 21h 44m
Logging Camp Cook Bunk House Set Thomas Yorke Scale Model Masterpieces On3 NEW
Logging Camp Cook Bunk House Set Thomas Yorke Scale Model Masterpieces On3 NEW
$140.95
Time Remaining: 7d 13h 5m
Buy It Now for only: $140.95
On30 Scale Ultimate Railroad Prototype Picture CD Collection Set 25000+ images
On30 Scale Ultimate Railroad Prototype Picture CD Collection Set 25000+ images
$99.99
Time Remaining: 23d 11h 48m
Buy It Now for only: $99.99

Other On30 Scale train items recently purchased through this site:

Evergreen Hill Designs 5002 1 4 148 O Scale The Woodsman Set Logging Saws Kit
O SCALE On3 On30 WISEMAN MODEL SERVICES LOGGING OR MINING CAMP 4 CABIN SET KIT
On30 Scale Ultimate Railroad Prototype Picture CD Collection Set 25000+ images
Logging Camp Cook Bunk House Set Thomas Yorke Scale Model Masterpieces On3 NEW
HAWTHORNE VILLAGE SPIRIT OF AMERICA EXPRESS COLLECTION TRAIN SET OF 9 ON30 Scale