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

On30 1920s MODERN STYLE BACHMANN SHAY CONVERSION KIT WISEMAN MODEL SERVICES
On30 1920s MODERN STYLE BACHMANN SHAY CONVERSION KIT WISEMAN MODEL SERVICES
$119.95
Time Remaining: 13d 21h 24m
Buy It Now for only: $119.95
NEW SPECTRUM 25660 ON30 2 TRUCK SHAY STEAM POCAHONTAS LUM FREE SHIPPING
NEW SPECTRUM 25660 ON30 2 TRUCK SHAY STEAM POCAHONTAS LUM FREE SHIPPING
$195.00
Time Remaining: 17d 6h 38m
Buy It Now for only: $195.00

Other On30 Scale train items recently purchased through this site:

NEW SPECTRUM 25660 ON30 2 TRUCK SHAY STEAM POCAHONTAS LUM FREE SHIPPING
On30 1920s MODERN STYLE BACHMANN SHAY CONVERSION KIT WISEMAN MODEL SERVICES