The wings are available from Sig for $14.95. The part number is SIGRPFC500. As far as the instructions are concerned, there should have been a booklet with the kit that had building instructions, set-up info, etc.

The kits are no longer made by Sig and there are few parts available anymore. I have a book for a Super Sport which is similar - uses many of the same parts. If I can find it I will try to scan it for you and send you the file.

Good luck!!

Bud