I think that I'm just going to order a new CCOT one but still need to do more research.
since its a metal that you can use fingers radiators to repair the tank, I used them when mine rotted out along the seam. cost was reasonable it was 135 or so.
theres also a place in Trenton, I think its a-z air conditioning that can repair metal tanks.
I love the name for the build, thanks for not calling it project taylor ham