The only time I have used a welder was a few years ago. He did aliminum welding on my Club Car golf cart frame. I found this in an old thread I posted at the time:
Bill Horne of J&B Street Rods & Welding . He does aluminum welding and runs a garage that fixes up “classic” cars.
No clue if he still there or if he can do what you need but he is a great guy and the only welder I know
