It's a multi fuel tank but they're basically the same... The main difference is that the multi fuel tank has a bigger opening to accommodate the in-tank pump. The gasser uses an in-tank filter and has a 2-way breather on it, so I took a multi fuel pump assembly and chiseled off everything, leaving just a disk that fit the opening. I adapted the filter assembly and 2-way breather to the disk and welded up the excess holes. Not 100% correct but it's passable. Most guys will never notice, and I'm keeping the original tank... Maybe someday I'll pull out the dents and treat the rust.
Jon