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 porter'.

Bachmann Spectrum 28299 On30 0 4 2 Porter Stem Loco DCC Train
Bachmann Spectrum 28299 On30 0 4 2 Porter Stem Loco DCC Train
$92.00
Time Remaining: 2d 11h 10m
Buy It Now for only: $92.00

Other On30 Scale train items recently purchased through this site:

Bachmann Spectrum 28299 On30 0 4 2 Porter Stem Loco DCC Train