umm it sounds to me like some of you believe this is a reasonable fix with the tank still on the bike?? lol pull that tank off pull the guts out of it, dissassemble it completely, take a hammer to the inside of that beat on it till it comes the majority of the way out, sand down the inside of the hole with 800 grit paper (prolly easier to do this first) bondo it (your gona have to do it a couple times) make sure you add more bondo than you think you need so that you have some stuff to sand off. Sand it off till it looks pretty, (1000 grit) then continue to sand the rest of the tank. spray whole tank down with 2 coats rustoleum primer, sand whole tank down with like 1200 grit (clean, everytime you sand you have to clean) 2 coats color, buff whole tank, 2 coats clear, buff the hell out of it an should look like new