Rifle Scopes : Scope barrel/objective threads striped

I picked up and early Japanese made Bushnell Banner 4x32 off eBay. Found that the threads holding the object lens housing and the tube are stripped. Any ideas on how to repair so that the scope will still function correctly. I plan to use it on a 22lr gun so it won't be subjected to a lot of recoil.  The scope is also stamped with BL. I understand that some early Bushnell scopes were made by Bausch and Lomb. Could mine be one of those. The optics look extremely sharp and bright.

I also need a turret cap if anyone happens to have one laying around LOL:)

Thanks.