Thanks very much for the input, guys. I'd really like to fix the tank since it's original, the inside is clean and it has the in-tank filter (replaced with Porsche part about a year ago along with the fuel pump and fuel lines). I don't mind buying a new one (all I can find is the Dansk repro) if I can't get the top of this one welded and have already contacted Len Cummings about his pre-filter kit. My only other hesitation is that I'm a terrible painter and will surely mangle applying the Wurth stone guard. Will keep y'all posted