Got our Stony Smith Shapeways shell for the Lajos Thek 8-11-4 chassis and we are running our first z scale train on the small Rokuhan oval with R70 curves and 110mm straight. This only works because the cars have talgo style trucks(coupler and truck are one unit). cars are stock Micro Trains and caboose is a Robert Ray Laser kit with body mount couplers and Micro trains trucks and all wheel sets are FVM metal wheel sets.going to find a hung of tree trunk to mount this on.