compressor replacement

Hello again, for the last thousand miles, my rodeo (97, 3.2L) has had a bad berring in the compressor. Not the main berring, but the one that the belt spins on while the AC is not turned on. Anyway, I can't seem to get to it! No matter which angel I try to reach it from, I cant seem to get to this pulley.
Also, NAPA wanted to cahrge me $90 for this thing. Does that seem a bit steep to anyone else?
Thanks

Doesn't the whole a/c comp. pulley AND clutch assembly have to be replaced for that? That typically requires removal of the a/c comp.

Joel