Hey if your over in modesto, i could help you take care of it.. Marlins hoops are great...Japanese metal from 85...not so much... Chances are you will need to plate the frame, and re weld.. i would be its just a matter of stress over so many years...i wouldn't weld to just the frame...plating it up is def worth it.
I have a Fabrication shop Called Stanley Fabrication over in the bay if you need some one to do it..