I have 2 48" wing pannels. They are sheeted foam, and are straight.
I need to make four cut outs, one ea. for aileron servos and one ea. for flaps.

Was considering using the rip fence on my table saw with a dato blade and cutting a trough to lay both wires in. Then filling the trough with a balsa strip for filler and sanding flush. I would hot wire cut the drop ins for the servos and use plywood plates glued to the skin for hard points. Any one have any better ideas?