Best of luck with your plans; but, I can't help but wonder why your going to so so much trouble to simply avoid dropping in an ARB locker? ARB's are not that expensive, and are the best solution to your four-wheeling needs, it seems. Their are other mechanical and electric lockers, but presently they are problematic on the trail.

94 YJ, SOA, 2-1/2 Alcans, ARB-front, Detroit-Rear, 4.56:1 gears, Oasis Trailhead compressor, 4:1 Terra Lo, 37x12.50x15 SSR's, 8000 lb Ramsey, & etc.