no experience with those specifically, but something like that i would tackle by tacking or braising rods on the dent area, pull them and then smooth out over a mandrel. Is the long tapered end open? (if i couldn’t hook something inside the large end and press it out)
The long tapered end is open at the end. It’s a thinner aluminum than the fuel tanks so I was hoping it would be more doable. I have the low temp aluminum rods maybe I can pin it then pull up on it? Then after I try a few more things and waste the day I can send it to Tubs guy. 😀