The wing is actually very easy. It's just a lot of work.

The wings come out at about 9.5 to 10 ounces ready to cover. They are a lot stronger than the foam. I don't know what a foam set comes out to, but Gator brags about thiers being 11 ounces (and in my opinion, they are much weaker and prone to folding...they use a 'foam rib" technique, I have a set here and they are scary).

You just have to take a few minutes and set up a jig if you build up the wing panels. The tail is the same way.

-Mike