control arm bushings

Has anyone seen this rear upper control arm? If so, do you know where I can get replacement bushings for it? A quick Google hasn't turned up much. Finally - is the rust in the ends a show stopper for replacing the bushings, or can I get a couple of years out of new bushings before...

I am in the process of replacing all of the original control arms (upper and lower) on my '97 Wrangler. Rear is all done, and the front lowers are done. I'm now ready to tackle the front UCAs and looking for advice on best tool to remove the 2 UCA front bushings that are pressed into the axle...