Not sure where Wayne, Mi. is, but can't be to far from me, I'm south of Toledo. Anyway, to answer your questions, here are several places you can contact for that type of repair.
Mac 1, in California, http://www.mac1airgun.com/
Precision Pellet in Pa. http://www.airgunshop.net/
Bryan and Associates, S. Carolina http://www.bryanandac.com/
Can't remember the cost but don't think it was all that bad, considering the guns value. Let us know how it goes, and thanks.
DaveB
www.vintageairgun.com