Maybe some prices will get the ball rolling... I'll even help you install this stuff if you want
Spartan locker for D30 with 27 spline axles $225 new - $150
WJ high steer knuckles with the WJ dual piston brake hardware, welded knuckles, and redrilled rotors for TJ, YJ, or XJ - $400 in parts alone - Will take $250
Yukon Chomoly axles for TJ, YJ, or XJ D30 axles - $450 new for the axles - $350 with unit bearings attached (includes vacuum disconnect block off plate if needed)