I've developed a leak in my modified (i.e. chopped) stock gas tank. The tank was shortened to accomodate wheel tubs. I haven't determined the exact source of the leak yet but I believe one of the welds has gone bad probably from inadequate venting (i.e. collapsed).

I'm trying to decide whether I should attempt to get this tank repaired or junk it and add a fuel cell.

How do I go about finding someone to weld on a tank (which probably involves an acid bath etc)?

Fuel cell foam: I had heard some foams don't play well with pump gas... is this still the case or are the foams better these days?

Any other suggestions on what to do or not do with fuel cells baffling etc?

I'd kinda like to get the old tank repaired so I still have some usable trunk space and use the stock fuel filler tube etc.

Any suggestions, comments, guidance, whatever...?

Thanks,

-Chris