I just picked up my pre-war model a couple of days ago. I'll paint the wheels and truck side frames, and probably replace the couplers with #58s. As Eric mentioned, the existing couplers are metal Kadee #5 replicas, with metal knuckle springs. While I'm mildly disappointed that Rapido chose to use these instead of the path Tangent has taken, I did appreciate the rust color (which included the "air" hose).

I had to do some tuning to the truck mounting. One truck would rock toward one side of the car body, but not the other; the other truck would rock toward toward the car center, but not toward the coupler.