so my next thought on a nice scale project is a b-17. electric of course. i dont think a 4 engined bomber with glow engines would be the most stable aircraft in the world. especially if 2 or more motors are out.
Tony Nijhuis has a 72" 1.8m wingspan model
the nice part is that you can get the vac formed parts like the windows. cowls. gun turrets etc from him directly. so you dont have to battle your gat off trying to make them. always been the biggest hassle with scale aircraft build from scratch.
i think 4 x 400 size brushless electric motors outrunners swinging 3 bladed props would do very nicely. now the next question is...how the heck do i stuff a model that size into my Mini?