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 scale trains'.

O SCALE On3 On30 BANTA MODEL WORKS 6000 Joes Machine Shop
O SCALE On3 On30 BANTA MODEL WORKS 6000 Joes Machine Shop
$54.00
Time Remaining: 2d 19h 4m
Buy It Now for only: $54.00
O SCALE On3 On30 BANTA MODEL WORKS 6145 Doc Holidays Apothecary
O SCALE On3 On30 BANTA MODEL WORKS 6145 Doc Holidays Apothecary
$94.00
Time Remaining: 6d 18h 53m
Buy It Now for only: $94.00
O On30 On2 On3 Scale BANTA MODELWORKS 6190 Chillerys Cafe model kit
O On30 On2 On3 Scale BANTA MODELWORKS 6190 Chillerys Cafe model kit
$98.00
Time Remaining: 10d 18h 8m
Buy It Now for only: $98.00
S SCALE Sn3 WISEMAN MODEL SERVICES AHD 2 SPOOL LOGGING DONKEY ENGINE WINCH KIT
S SCALE Sn3 WISEMAN MODEL SERVICES AHD 2 SPOOL LOGGING DONKEY ENGINE WINCH KIT
$54.95
Time Remaining: 15d 15h 12m
Buy It Now for only: $54.95
O SCALE On3 On30 On2 BANTA MODEL WORKS 6150 Chillerys Cafe FRONT ONLY
O SCALE On3 On30 On2 BANTA MODEL WORKS 6150 Chillerys Cafe FRONT ONLY
$54.00
Time Remaining: 17d 12h 30m
Buy It Now for only: $54.00
F G scale BANTA MODEL WORKS 8122 Sonnys Used Cars
F G scale BANTA MODEL WORKS 8122 Sonnys Used Cars
$95.00
Time Remaining: 22d 23h 17m
Buy It Now for only: $95.00

Other On30 Scale train items recently purchased through this site:

F G scale BANTA MODEL WORKS 8122 Sonnys Used Cars
S SCALE Sn3 WISEMAN MODEL SERVICES AHD 2 SPOOL LOGGING DONKEY ENGINE WINCH KIT
O SCALE On3 On30 BANTA MODEL WORKS 6000 Joes Machine Shop
O SCALE On3 On30 BANTA MODEL WORKS 6145 Doc Holidays Apothecary
O On30 On2 On3 Scale BANTA MODELWORKS 6190 Chillerys Cafe model kit
O SCALE On3 On30 On2 BANTA MODEL WORKS 6150 Chillerys Cafe FRONT ONLY