c10 vs c30 gas tank differences

[catch2otwo]

How big of a difference be? I am wanting to run a aluminum of stainless underbed tank for my current c30 build.

Boyd only lists a c10 tank, and there is a note they are not taking on custom builds, only whats listed.

I got a quote from ricks tanks, c30 specific supposedly, 26 gal with fuel and sender, stainless, $2400. More than I was expecting, but it looks like they do nice work.

Can I get away with buying a tank listed for a c10? Will it be close enough to bolt up or will I be throwing away money trying to make this work?

Any other manufacturers I should check out? I did the blazer/burb tank route on my last c30. Wasnt a big fan of doing it that way.