You can get a dana 60 off of pirate for $800, but then you have to pay for shipping.
 I don`t won`t dana 60 boat anchors under my toy, and they are to wide, a FJ 80 front is 63.5" wide.
The dana 60 width, and weight is fine for a trail rig only, or if you are running a V8, but mine is a DD, 70-80 miles a day.
I have built up a dana 60,70, I had $5,600 into them, I got my dana 60,70 cheap, the same price you pay for just a front.
Diffs complete $1000
ARB`s $1700
gears and setup$1000
Hysteer  $600
35 spline outers $160
warn 35 spline hubs $230
rear 35spline axles $400
narrowed 1 side of 60 $200
misc $300