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

Morgan Hill Models MHM On30 O Scale Stone Water Tank w Shed Kit
Morgan Hill Models MHM On30 O Scale Stone Water Tank w Shed Kit
$84.95
Time Remaining: 2d 21h 51m
KMP Models O On30 Scale Craftsman Logging Kit Spar Tree Model Trains New
KMP Models O On30 Scale Craftsman Logging Kit Spar Tree Model Trains New
$56.95
Time Remaining: 3d 9h 57m
Buy It Now for only: $56.95
KMP Models O On30 Scale Craftsman Logging Kit Steam Sawmill with Pl
KMP Models O On30 Scale Craftsman Logging Kit Steam Sawmill with Pl
$179.00
Time Remaining: 3d 9h 57m
Buy It Now for only: $179.00
West side  Pacific Traction Pacific Fast Mail Balboa Scale Models Fomras
West side Pacific Traction Pacific Fast Mail Balboa Scale Models Fomras
$500.00
Time Remaining: 3d 18h 24m
Buy It Now for only: $700.00
Western Scale Models M16 Blacksmith Shop SEALED Kit O On3 0n30 1 4 Scale
Western Scale Models M16 Blacksmith Shop SEALED Kit O On3 0n30 1 4 Scale
$28.00 (4 Bids)
Time Remaining: 4d 1m
Western Scale Models L 3 Ames Twin Cylinder Steam Engine SEALED Kit O On3 0n30
Western Scale Models L 3 Ames Twin Cylinder Steam Engine SEALED Kit O On3 0n30
$27.00 (5 Bids)
Time Remaining: 4d 4m
Western Scale Models M 51 The Rowe Inclined Shaft Headframe  Hoist House Kit
Western Scale Models M 51 The Rowe Inclined Shaft Headframe Hoist House Kit
$58.49 (10 Bids)
Time Remaining: 4d 12m
CHB Models VB 630 148 O Scale Vertical Boiler Kit On3On30 LoggingMachinery
CHB Models VB 630 148 O Scale Vertical Boiler Kit On3On30 LoggingMachinery
$49.95
Time Remaining: 6d 21h 51m

Other On30 Scale train items recently purchased through this site:

Western Scale Models L 3 Ames Twin Cylinder Steam Engine SEALED Kit O On3 0n30
KMP Models O On30 Scale Craftsman Logging Kit Steam Sawmill with Planer New
Western Scale Models M16 Blacksmith Shop SEALED Kit O On3 0n30 1 4 Scale
Western Scale Models M 51 The Rowe Inclined Shaft Headframe Hoist House Kit
Morgan Hill Models MHM On30 O Scale Stone Water Tank w Shed Kit
CHB Models VB 630 148 O Scale Vertical Boiler Kit On3On30 LoggingMachinery
West side Pacific Traction Pacific Fast Mail Balboa Scale Models Fomras
KMP Models O On30 Scale Craftsman Logging Kit Spar Tree Model Trains New