gas tank leak

I've had my 2001 TLR (yellow) for 18 years. It's been sitting up for a long time. Life and Kids lead to it being put up. Well, i just brought it out of retirement and i'm working on old parts that need TLC. I've found a number of parts on Ebay and new parts from places like Partzilla...

Spent all winter trying to get my gas tank to seal. The usual leaky pump gasket/flange. Tried 2 different gaskets, 2 different sealers. Beat on the flange trying to get it straight as possible. Used new bolts, used a torque wrench in the star pattern. Did everything I could. I think I had...