Thanks Bobby and Allan. I almost forgot about reading a couple of years ago about plug welding. That sounds like the ticket. I'll go to our metal scrap yard and look for some copper block material, or maybe the local welding supply!
I'm new to welding, but do have a Hobart Mig welder, so I'll give it a try. Allan on the fenders they are both repairable, just need someone skilled with a block and hammer. There is a local guy who might do it for me, that I'll go see next week on a day off! If not I can sell them for the same amount as two new fiberglass ones!