gas tank

Hi there I have a leak from around the drain plug in the petrol tank, which I've tried to seal with various apparently appropriate products - but it works for a while, then eventually starts leaking again. Anyone got any idea of an equivalent UK petrol tank that would fit if I wanted to...

SOLD .SOLD .Gasser / "MQQN" style, 2 1/2 gal. 8"x12" Ally Gas tank , Made in USA . Due to Ill health, Im selling up all of my Hot Rod parts .... :cry:--------------------------------------:cry: Ist up ; My " Moon " style , 2.5 gal, center filler, spun Aluminum gas tank , (...