Gizzard
Super OPE Member
This is what you want Wayne. Dont mess around with sealants...
https://www.ebay.com/itm/223348322555
That would be the quickest & lowest amount repair time. I would not recommend most sealants either like the JB, seal all, perma weld, as they get hard and troublesome getting stuff apart for repair work. If use some sealer would opt for non-hardening like Dirko & some others.
The Red-Kote is like putting a liner inside tank and does not cost much at all for a little 10 series tank, however more time consuming than just replacing gasket.
With being thrifty, I've tried lot of sealers and other and like steve mentions would just use the new viton gasket or red-kote after many trial & errors.