I finally got it cleaned up and put back together!
I took the cart completely apart and gave it a really good cleaning. It definitly has some battle scars, but I'm totally stoked with how it cleaned up. I had to grind out a tiny bit of rust and brush on some Rustolium, which is hardly even noticeable. I polished the paint with rubbing compound and finally put a coat of wax on. The stainless steel parts were cleaned and polished as well. I replaced the casters, as one was missing and the other was frozen solid. A couple new axle nuts and it was done! Not too shabby for less than $20 in parts.
I'm still looking for a kettle to put on there...One of my other hobbies...
The Yellowfin Tuna fishing has been outstanding this year!