Great find! Sticking with the undersized wheels?
Have fun Stewie and post lots of photos. I'm about to do the same thing with a late 31, excited, nervous at the same time.
I have found sandblasting is the best method for removing rust and getting a surface that is great for epoxy primer. I also use molasses and water, but that take a long time - several weeks. If you sandblast, don't use high pressure (use 80 lbs of a little less). I don't blast perpendicular to sheetmetal. Blasting heavy thick parts like a frames, frontends or rearends, etc, no problem with a little higher pressure and blasting perpendicular to the part. Just my experience.
Rusty Nelson
Stewie,
I have used vinegar to remove rust, but it takes a long time. I have found if you use heat, it works faster. I bought a crockpot (I didn't us my wife's crockpot) and used it to heat the vinegar to speed things up.
Rusty Nelson
Regular vinegar (5%) or pickling vinegar (7%)?