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 o scale'.

On3 On30 WISEMAN MODEL SERVICES NCNG SHORTY WHALEBACK TENDER KIT
On3 On30 WISEMAN MODEL SERVICES NCNG SHORTY WHALEBACK TENDER KIT
$49.95
Time Remaining: 2h 14m
Buy It Now for only: $49.95
Branchline Trains Laser ArtDeluxe Farmhouse kit 552NIB S Scale Sn3
Branchline Trains Laser ArtDeluxe Farmhouse kit 552NIB S Scale Sn3
$77.98 (9 Bids)
Time Remaining: 4h 14m
Hawthorne Village Summer Crossing Gate  Brand new still in box
Hawthorne Village Summer Crossing Gate Brand new still in box
$25.00
Time Remaining: 4h 20m
Buy It Now for only: $25.00
Group of eight 8 Sn3 Logging Disconnect Bunk cars S Scale Ready to Run
Group of eight 8 Sn3 Logging Disconnect Bunk cars S Scale Ready to Run
$41.00 (2 Bids)
Time Remaining: 4h 20m
Three 3 building kits from banta modelworks RGS NIB S Scale Sn3
Three 3 building kits from banta modelworks RGS NIB S Scale Sn3
$157.50 (7 Bids)
Time Remaining: 5h 3m
bachmann spectrum 28671
bachmann spectrum 28671
$100.00
Time Remaining: 5h 26m
O On30 On3 HIGHLANDS STATION Resin building kit brand new reissue
O On30 On3 HIGHLANDS STATION Resin building kit brand new reissue
$39.99
Time Remaining: 5h 46m
Buy It Now for only: $39.99
Four 4 S Scale Building Structure KitsNew in BoxNIBS ScaleSn3
Four 4 S Scale Building Structure KitsNew in BoxNIBS ScaleSn3
$66.00 (8 Bids)
Time Remaining: 7h 29m
Group of Four 4 Western Town Building Kits NIB S Scale Sn3 Kit
Group of Four 4 Western Town Building Kits NIB S Scale Sn3 Kit
$100.00 (14 Bids)
Time Remaining: 7h 58m
On30 absolutely rare never built custom weathered Diesel Shay DCC
On30 absolutely rare never built custom weathered Diesel Shay DCC
$495.00
Time Remaining: 9h 3m
On30 SUPER rare never built custom weathered  Diesel Shay  DCC
On30 SUPER rare never built custom weathered Diesel Shay DCC
$495.00
Time Remaining: 9h 3m
On30 O scale Logging Truck custom built and weathered lot 10
On30 O scale Logging Truck custom built and weathered lot 10
$115.00
Time Remaining: 9h 3m
Steam Locomotive Coal Delivery Truck custom built and weathered lot 50
Steam Locomotive Coal Delivery Truck custom built and weathered lot 50
$115.00
Time Remaining: 9h 3m
bachmann spectrum 28671
bachmann spectrum 28671
$110.00
Time Remaining: 10h 24m
Five 5 Mining Related Building Kits by Lehigh ValleyNIB S Scale Sn3 Kit
Five 5 Mining Related Building Kits by Lehigh ValleyNIB S Scale Sn3 Kit
$86.00 (7 Bids)
Time Remaining: 11h 12m
Seven 7 New in Box Building kits by FinestKind Models NIB S Scale Sn3
Seven 7 New in Box Building kits by FinestKind Models NIB S Scale Sn3
$305.00 (8 Bids)
Time Remaining: 11h 25m
Coke OvensBeehive and Wall TypePlaster Casting Kits NIB S Scale Sn3
Coke OvensBeehive and Wall TypePlaster Casting Kits NIB S Scale Sn3
$31.96 (2 Bids)
Time Remaining: 12h 50m
Busch 31319 Tt Ore Car Fal Zz  New Original Packaging
Busch 31319 Tt Ore Car Fal Zz New Original Packaging
$38.20
Time Remaining: 13h 33m
Buy It Now for only: $38.20
Busch 31318 Tt Ore Car Fal Zz  New Original Packaging
Busch 31318 Tt Ore Car Fal Zz New Original Packaging
$38.20
Time Remaining: 13h 33m
Buy It Now for only: $38.20
Busch 51571 H0 Ifa G5 56 Suitcase Transport Karl Marx City  New in Boxed
Busch 51571 H0 Ifa G5 56 Suitcase Transport Karl Marx City New in Boxed
$29.40
Time Remaining: 13h 33m
Buy It Now for only: $29.40
On30 Logging Steam Locomotive DCC onboard custom weathered painted lot B
On30 Logging Steam Locomotive DCC onboard custom weathered painted lot B
$255.00
Time Remaining: 14h 37m
Buy It Now for only: $255.00

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HON3 WESTSIDE LUMBER COMPANY CABOOSE LOGGING
SPECTRUM 27399 ON30 Flat Car Painted Unlettered
Bachmann Spectrum 27301 On30 Assembled Steam Log Skidder Non Operating