I stopped by a 4x4 shop today and they quoted me a price of ~$750 for the installation of the Skyjacker XK20 lift including the kit, ancillary parts and alignment. Is that a good price? Also, the Skyjacker kit uses polyurethane spacers and costs $304. Rusty's is all steel and comes with rear shocks for $250, Rocky Road is PU rear/steel front for $205 w/o rear shock, and Rock Krawler's 3" kit is very nice for $670. Is the Skyjacker (and PU) that good or should I go with Rusty's, RR or even spend the money for the RK?