http://www.crumbsinmycouch.com/category/blog ...Berkshire on the track next to the building
In model railroading, we are forced to make many compromises. One of them is clearance. It the rolling stock doesn't touch the buildings or get hit by passing trains, you have enough clearance. In the real world, you would have to have a sign ""No Room for Man on Side of Car".
Jim
I have those decals left from the kit
Get an NMRA standards gauge. You can buy one from their website.