Aluminum Fuel Cell/Tank crack repair

Keep looking for a welder. Rad shop? Do those guys tig? Doubtful, around here................
67Dart273 is right on. Back in college I took an oxy-acetylene welding class and it was so much fun, I took a Tig classs the following semester. Aluminum is very easy to Tig weld. You should find people nearby that can do that.