This is what I have been working on:

Used dana 60, 4.10 with a PowerLock $200
35 spline side gears w/ powerlock rebuild kit $200
2.875" bearing housing ends $100
zZ35 spline axles $450
Perches $50
Pinion Yoke $150
Reuse brakes

Sand blasting and powder coating are free in this case so I can't count that because it won't cost me any bread. I have also been able to build a jig based on a 1.5" bar for free and will be doing up a bunch of housings over the winter. All in all I think you might be able to pull it off for about $1000 if you shop carefully. As you can see my list does not include u-bolts, gear oil, gaskets, seals, etc. so realistically we are talking $1500-1700 bolted in the car and ready to abuse. I hope this helps with your decision. If you were closer I'd tell you to find a housing and we could hack it and weld it back up for fun.