Ok I have never done this.
I have some questions so bare with me please.
I have several original kit plans. Some full scale and some not.

1. How do you get a plan up to full scale to be able to copy?
2. How do you make a template off a full scale print? My guess is tracing paper? Then cut it out, transfer this to something more rigid (cardboard)?, then cut that out and transfer this to the balsa sheet to be cut?
3. How are you guys cutting out the fuslage? Modeling knife? saw? How about cutting out the ribs?
4.I take it you can buy the leading and trailing edges?

Any other info on scratch building appreciated.

Thanks