Hi there, there are still a few shops around that do restoration and repairs, you might want to scour your area and see if there's a local place.
I'm currently in southeastern Wisconsin and there is a shop in the town I live in that does repairs and whatnots on singers--the other guy who did the repairs out of his home retired a handful of years ago (and died--quite the shock to my grandmother when she couldn't get HER red eye fixed by HIM, he'd been working on all her machines for decades...gosh i wish i could have inherited that machine, but i digress.)
hopefully you can get the machine up and working, they're quite lovely, and far fewer "issues" than the modern plastic and computerized ones.
good luck!