Rusty petrol tank

[sapper740]

Hello all. I recently replaced a clogged fuel filter. Lots of rust was present due to, I'm sure, the previous owner keeping a minimum amount of gasoline in the tank for decades. Condensation has taken it's toll over the years and the inside of the tank is quite rusty. I drained it and have done a visual inspection which confirmed the problem. Short of removing, fabricating and welding a new bottom, or replacing altogether, is there available any sort of commercially available product which will provide a temporary fix? We're fixin' to hit the high season here in Texas for reenactments and I want my CMP ready to go. Any help greatly appreciated. Derek.