This guy is amazing.http://www.k7qo.net/
His instructions are very detailed.
Here's all you need to make a SW+ radio:http://users.commspeed.net/k7qo/swl40.pdf
Here's his poor man's autocad:http://users.commspeed.net/k7qo/schem.pdf
I'd like to work him someday, but he would
need to slow down quite a bit for me.