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

ON30 BACMANN 26994 SAW FILERS CAMP CAR NEW IN SEALED BOX
ON30 BACMANN 26994 SAW FILERS CAMP CAR NEW IN SEALED BOX
$29.95
Time Remaining: 4d 5h 39m
Buy It Now for only: $29.95

Other On30 Scale train items recently purchased through this site:

ON30 BACMANN 26994 SAW FILERS CAMP CAR NEW IN SEALED BOX