I'd really love to build that J50, printed chassis & all. The more you look at it, the printed chassis makes sense. For starters, less experience modellers could have a crack at it without having to solder up etches & it would be easier to wire up given as, being made out of plastic presumably, it's already insulated. Would be nice to see more classes like, & I know someone's already pointed this out, the N7 or maybe even the E4 2-4-0