Fuel Tank Swap, Does it Fit

[Bigshooter]

Hi all, first time poster.

I have a kitfox model 3 and my left wing tank is cracked. A local person has a kitfox wing tank from another model 3. I am wondering if it will fit? The kitfox parts list says if you order a new 13 gallon you need to know your wing twist, is that a concern for a 6 gallon tank?

Thanks in advance.