Chad,
You didn't know of a better way? Didn't you look at the drawing Minnflyer made up for you? Look back to post #47 and look at the drawing. That is a very easy way of doing a wing servo. There are several other ways of doing a wing servo also. I know Bruce has said this before, I'll repeat it. Slow down and understand what you are doing before you do it. That's one great thing about having a resource like RCU, if you don't understand you can get answers before doing it.

Anyway, your problem. The mounting for the servo needs to be in one bay of the wing, the area between ribs. As I said before, it really will be better in centered in the aileron. I can't tell for sure what kind of wood you used to make that plate, but it looks like it's some pretty heavy ply. Probably adding more weight than needed. Also, get the stringer fixed. Those stringers add strength to your wing. Please don't laugh it off as an accident. Without those strength members you won't be able to do anything but watch as your plane falls out of the sky with a wing folded in half.