New in-cab gas tank source?

[Model 12]

Gents

I have searched this issue, and have found lots of cool things going on with tank relocation, but that's not what I'm looking for. My 72 in cab tank started seeping, so I took it out. There is no distinct leak location, so I am assuming the seam is bad. Siphoned fuel taken out looked kinda cruddy. Considering the carb filter plugs up frequently that's no surprise.

Looking at a replacement tank, and want to know who is the best source...and best value. I don't want a new tank that won't drop in or the sender wont fit in because of crappy quality. I'm in Knoxville, TN, but I guess Fed Ex will come from anywhere!

Sound off. Thanks, Dave