RE: foam wing adhesive
Gorilla glue will expand as it dries and increase many times the contact area between glue and foam, making it in my opinion the best option, with the strongest bond. Ive seen delamination with 77 and with epoxy, and yet have to see the first one with gorilla. This doesnt mean anything, as gorilla is not widely used, so dont misunderstand me, but I have cut a foam-balsa-gorilla lamination to expose the layers, and you can see the yellow stuff up to a 1/4 inch inside the foam. Yes, epoxy is a lot stronger, but that is irrelevant when the parts to join are so much softer. In my opinion its the area that counts. Good luck, and whatever you use, clamp or vacuum bag it good