Re: S.P.A.D.S. ?
I had one of these years ago. Easy to build and normally durable, but not so much in colder weather.
Only things used for this were the tail assembly and landing gear, grabbed from defunct spares. Everything else is as described.
ps. The main spar is a yardstick, something I found surprisingly hard to find.
I know there's money in aviation........I put it there!