Actually Thoroughbreed we already did something very similar to that with the famous Gauge boxcar. I'm not sure where it is right now - but here is a link to the thread.
http://www.the-gauge.com/showthread.php?t=5057
Maybe we could start another one with a GRV car. Or, maybe we could just all make a GVR boxcar in whatever scale we are modelling. What do the rest of you think?
Val
