Hey Scott,
don't know if you have sent your plane in yet, but I have a suggestion.

I had a US 60 that ended up with a severely warped wing, got told the same story(ship in the wing before we do anything).

I then remebered that I had talked to a guy named "Dave" there before, about a carb change for a NIB MDS 1.48 engine I have.
Dave had treated me super, sent me a free(!!) carb to use, told me to keep the old carb and try it--not all of them were a problem.

So, I called Horizon again, asked to speak to Dave in Tech. Support.
Dave sent me out a new wing set for my US 60, AND issued a call tag for UPS for the old wings!!
All I had to do, was put my old wings in the box they sent my new wings in, put the return sticker on the box, and drop it off at UPS(could have even given it to a driver).
No muss, no fuss,(No shipping cost's!) and Dave took SUPER care of me!!

My advice--call Horizon, ask to speak to Dave!
Pud