There used to be a gent in Texas that repaired scopes, and he would build you a scope from the parts of abandoned scopes (he said he had a room full of scopes that people just abandoned when they learned they might have to spend fifty bucks)
but alas, the man is retired and has hung it up
I have two old weavers that need help, both have lost zero and not only lost it but it keeps moving, hate to admit it might be time to trash them