John,

I modified your idea and got it off after about 2 hours! I ground the heads of the rivets down with my angle grinder, then i took the chisel once i got close to the actual bracket since i only had a small sledge and not the John Henry hammer that would have been easier. Needless to say, i drilled out the center of the rivets as much as i could and then heated the bracket/frame with a torch. The rivets came out pretty easy with a punch at that point.

Good thing that i have semi strong forearms since i was whacking (technical term) about 60-70 on a couple of the rivets i couldn't get my grinder on.

Now to find a shop that can help me get the leaf spring loose!

Thanks guys!