RE: Scratch Building
I agree with all said so far, build you a Sig kit to get the hang of it. Then pick out a plane you want to build from plans. Ultimate is to have a scroll saw, sander and band saw but you can build most with an exacto, small hobby hand saws and sandpaper. If you really get into it you collect more and more tools to make life easier. Also comes in handy when it comes time to repair the old ARF. Plans, copies of plans before building, templates, rib cutting techniques, sanding, covering.... I think I'll pull out a kit and start building. It's cold outside! Let's see, will it be the Ercoupe, or Waco or Something Extra or Hog Bipe or Supersportster or and hey by the way you'll also start collecting kits when you can find them. Here, Ebay, craigslist! Good luck, it's fun. I found my Pica Waco and Jack Stafford Ercoupe right here just talking with guys that hadn't even advertised them for sale yet. So they are out there, you just have to look for them.
Jim