If I absolutely *HAD* to buy a kit, I'd get a rock krawler or TNT 3-link xj front and make it work, and then claytons rear.
That being said, I chose to build all of mine that way. If I had to pay for all the metal I wouldn't have saved much over buying the above. Just the joints alone (went with full rock krawler krawler joints) were $500+
09 Rubi 2dr:MetalCloak2.5", 37"MTZ's/Slabs, EVO Stff, ORFab Cage, Chromo's, Driveshafts etc