I submitted a group of G41A photos way back when Gene Fusco was researching these cars for a possible N scale kit. He ended up using one of mine, and I have a photo credit in the instructions. I bought a six pack of these for myself, but I have not assembled them. I hope to do so at some point. Gene most likely will never do another N scale car due to the poor sales for this car (as others have mentioned). I remember back in the 90's in RMJ or MRing, someone scratch built these cars in HO. The artical incuded HO scale plans for use in scratch building them. I started scratch building them in N scale using an N scale rule. I never did finish them, but they seemed straight forward if I recall. All of the parts were normal styrene. Maybe I will get around to trying the RYM kits this winter. Maybe not. Either way, I don't want to part with them just yet!