1. Grab anything sharp like an xacto knife and cut from the servo mount hole through the center of the wing, shove the servo lead down in the slashed wing, then patch the cut with packing tape and gap filling thick CA over the planked areas. Be sure to not crush too much planking/ribs when hacking into the wing if your blade happens to be so dull you can tell which side to cut with.

2. Lay the leads over the top of your covering and just tape it in place. As fuel soaks the tape loose, clean and replace as needed.
PM me for illustrative pictures.

3. Return it to Tower and say it came that way. I'll pick it up off scratch and dent in a week for another $25 off.