When I replaced the UCAs on my 91 this summer, I used a pair of NOS OEM arms. For the axle bushings, I used Moog bushings. These were listed to fit all XJs 84-01. They fit my 91 just fine, but were a bear to install on the 2WD. To press out/in the axle bushings I used a homemade press made out of threaded rod, plumbing fixtures, etc. I found online. Got all the parts for it at a local salvage house for a couple of bucks. It worked fine, but was tight on the left side. I'll see if I can find the link for it.
EDIT: Here's the link, but there are no pics as there were when I first saw it.
http://jeep.off-road.com/trucks-4x4/tech/xj-control-arm-bushing-replacement-20477.html