If you refer to something as scratch built. That means you designed and built it. Plans built is self explanitory as well as kit built. By all means build some kits, thats half the fun but lets be realistic. A .60 size top flite warbird will eat up at 200 or so hours of your time and if your not a real experienced flyer you can't fly it anyway. Average time for a quality giant scale warbird build is 2 Years and $2000-$3000 dollars. If you insist on going in the 80" range a Top Flite P47 Thunderbolt is an ideal plane but I would build a few simpler kits and working up that direction. Need to walk before you can run.