Honestly for me working with factory-style rubber LCA bushings is more of a pain than going with poly. As long as the poly bushings fit snugly into the outer shell and the LCA pins fit snugly into the bushings you're good to go, also be sure to use plenty of the special silicone grease for polyurethane bushings. It's really not that difficult if you understand how they're supposed to work. If there's anywhere in the front suspension where poly is most beneficial it's in the lower control arms. I still have offset rubber bushings in my stock upper arms like
@Kern Dog mentioned but they're pretty beat-up after ~10 years and 30,000 miles of hard driving. I'll be going to QA1 or SPC tubular UCAs from
@BergmanAutoCraft after upgrading my brakes and shocks. I'll also likely upgrade to his Delrin LCA bushings and swap out the current hollow greaseable LCA pins for solid ones.