You could see if any shop will cut you some slack if you do some of the work. I paid 100.00 to have mine done, but I took the rear end out of the car and did the work so all they had to do was put the gears in. I was putting in upper and lower control arms, shocks, and springs at the time too, so it wasnt too much efferot to yank the entire thing out.
96 explorer motor, tubular UCA and LCA, bbk shorties, 2 1/2 h-pipe, 3.73 gears.
13.73 @ 104.00, 2.24 60'