Here's a thread on my wing

http://www.vx220.org.uk/forums/topic/108907-latest-moulding-nsfg/

I made the wing in two parts (1x200g, 3x600g) layup for the wing part.  Its so rigid it needs no internal bracing but it is a little heavy (around 4kg).  If you look at the two halves there's a flange on the front.  I bolted the halves together and then put some 25mm carbon tape down the inside (add a weight to the end of the tape and drop it down the wing).  I wet out the tape with a brush on a broom handle.  I'd recommend some smaller dowel as it was a pain!  Once cured the rear edge was prised open slightly and some bonding paste squeezed in before clamping it shut.  The ends of the wing element are sealed in with some 10mm plywood 'sections'.  I put tee-nuts into the back of the plywood to hold the end plates.  My end plates are made of carbon / glass mix.  I just used polyester resin for this as they aren't really load bearing.  I made them by laying up on some bagging film (1x600g carbon, 3x 450g CSM, 1x 600g carbon) I put some more bagging film over the top (careful not to trap air in).  I put the whole lot between two sheets of ply and put an engine on the top of it all.  Bodger, me??!  Makes a nice flat end plate.

Hope this helps.