Hey
i did my subframe bushes 2 weeks ago in my garage, epic job. Never again.
I used an air hacksaw, 20T press, hammer & chisel, drill, rattle gun. I stripped the entire subframe, diff out, brakes, shafts, shocks and arms. Made handling the frame on the press so much easier. It took me 9 hours to drop the frame, strip the frame, replace bushes and install. Never again, i was sore for 3 days after that. I also put the new bushes in the freezer the night before to help with the pressing stage.
I was quoted $1000 for the entire job which is about right i think. Considering you'd have 2 blokes on the job and should take about 4-6 hours so the $1000 is about right.