So I found this passenger car on Ebay that's almost the exact car I need for a Petticoat Junction O gauge set I'm making for myself. The problem is it's built for 2-Rail, and I'm not sure what needs to be changed in order for it to run on 3-Rail O Gauge track with O36 Curves. If anyone has any thoughts on the matter, please let me know. Here's the link for the car.
I could use all the help I can get.