I was going through the same thing when I put a mamba on mine, fiddled around with springs for awhile, then just disconnected the wastegate and drove around, went right to 20psi(right what I was hoping for) and left it disconnected.
I imported my HDJ81 from Canada myself...............took a total of about 9 minutes. 5 minutes at the boarder paying the duty fee and getting the paperwork, and about 4 minutes at the DMV to get tabs and title.
I have the Rhino rack Pioneer Platform rack. the tent doesn't overhang( but the awning sticks out a mile) when i need it off i just take the whole rack off. awning, tent and rack all in one shot and put it in the shop on sawhorses.
This is the kind of rust usually referred to as cancer, it always get way worse before it gets better. The paint needs to come off, the bad metal gets cut out, good stuff welded in and then resealed repainted. sanding it, treating it and bondo/ fiberglass are a cheaper option and are DIY if you...
I still have this, I think its an old cruisin off-road, it aluminum , its in western Washington , and its for sale
I thought I had it for sale on here as well but cant find the add