The donor car I bought cost $605 total. $375 for the car, $135 for the auction fees and $100 to Ron for the tow. I feel it was definately right to buy a whole car cause I had all the parts that I would ever need. If you just buy just an engine and trans, you'll find that you have to fabricate motor mounts or buy a subframe, you'll need the VATS module and fuel pump module, ect. Lots of "extra" stuff to aquire.
The salvage auction is held by Copart
which has many facilities. It would not be in the budget to have a car shipped from MA so you might want to get friendly with a used car dealer that has an auction license.
The whole procedure was primarily a bolt-in and moderate wiring endeavor. You will need some non-standard tools such as an engine lift. We actually borrowed one ourselves. If there wasn't the delay with the paint, we probably could have completed it in 3-4 weekends.
Note: My 90 already had provisions for the torque axis mount however my 89 parts car did not. You would have to measure accurately and do some welding to accomidate the mount in your car.