We've searched the internet and found the largest collection of On30 Scale trains for sale is on eBay. Below are the listings for '4-6-0'.

Black Unlettered W Steel Cab 4 6 0 DCC Sound BAC28903 Retail53900
Black Unlettered W Steel Cab 4 6 0 DCC Sound BAC28903 Retail53900
$512.00
Time Remaining: 11d 19h 3m
Buy It Now for only: $512.00
Bachmann On30 Scale Train Steam 4 6 0 Ten Wheeler DCC Equipped ET
Bachmann On30 Scale Train Steam 4 6 0 Ten Wheeler DCC Equipped ET
$209.97
Time Remaining: 14d 15h 57m
Buy It Now for only: $209.97
On30 4 6 0 STEAM SV O B GBR  BAC28906 ORGINAL BOX Retail 53900
On30 4 6 0 STEAM SV O B GBR BAC28906 ORGINAL BOX Retail 53900
$485.05
Time Remaining: 23d 18h 57m
Buy It Now for only: $485.05
On30 4 6 0 STEAM SV O B ETWNC 12  BAC28904 ORGINAL BOX Retail53900
On30 4 6 0 STEAM SV O B ETWNC 12 BAC28904 ORGINAL BOX Retail53900
$485.05
Time Remaining: 23d 18h 57m
Buy It Now for only: $485.05
On30 4 6 0 BALDWIN SV O B P U  BAC28902 ORGINAL BOX Retail 53900
On30 4 6 0 BALDWIN SV O B P U BAC28902 ORGINAL BOX Retail 53900
$485.05
Time Remaining: 23d 18h 57m
Buy It Now for only: $485.05

Other On30 Scale train items recently purchased through this site:

Bachmann On30 Scale Train Steam 4 6 0 Ten Wheeler DCC Equipped ET
On30 4 6 0 STEAM SV O B GBR BAC28906 ORGINAL BOX Retail 53900
Black Unlettered W Steel Cab 4 6 0 DCC Sound BAC28903 Retail539
On30 4 6 0 STEAM SV O B ETWNC 12 BAC28904 ORGINAL BOX Retail53900
On30 4 6 0 BALDWIN SV O B P U BAC28902 ORGINAL BOX Retail 53900