I feel your pain Ebbie!
My 77 Archer had the wing walks removed and we found corrosion on the spar with a crack running around the circumferance. The wing was exchanged by Williams in Indiana and I now have a totally rebuilt starboard wing. We airfrieghted the new one to the UK and shipped the old one back. Total cost was around $35K but painting and fitting added another $15K by time all was done.
If they don't have a new Archer wing in stock, they can rebuild yours.
I have no vested interest in their success but I cannot recommend them highly enough. They did a splendid job in looking after me.
AirFrame Components