RCKen got it right. Building fancy scale models isn't just a matter of reading about how to do it. If that were the case, it would altogether unremarkable that anyone does it. Your hands need to learn the skills, and a few simpler projects beforehand are the way to do it. Ziroli's first build wasn't the impressive models you see today, and neither is anyone else's. Arguably, the cheapest possible route to go is to build two or three .40 sized kits, starting with a basic sport plane and then a detailed scale model and maybe a detailed .40 sized P38 before tackling the big one. I say that because a mistake in a small model may cost you $50 and a few hours, while a mistake on a big model could cost 5 times that. Progressing in incremental steps also will give you the flying experience needed to enjoy that big model once you have it built.