I didn't really read back, so I'm not totally sure what you ended up with. I had a lengthy, detailed post all typed out for you but through the magic wonder of the internet and one twitchy finger i was banned at that very moment. Oh well. Anyway, cliffs notes time.
grab the entire dash. Likely they will probably remove it for the harness away, and you need that harness to run the termi cluster. Might as well update the dash and center console. I would grab the clutch/brake pedal box and accelerator pedal. They look better and have resale value.
grab the harness that goes through the firewall from the computer. It has a retaining clip way up inside the dash by the windshield and is a pita. That harness goes through the firewall to the "calibration" block by the hood hinge. The engine harness and trans harness (rev. lockout, O2 sensors etc) plug in there, you will need those as well. The harness follows the back side of the apron inside the fender and contains the CCRM as well as things like the MAF, IAT, E-fan, AC, passengers side headlight and fog lights etc....Grab it all.
I would grab the drivers side harness as well. They feed things like the windshield wipers, cruise, horn, windshield washer, drivers side headlights and fog lights, power distribution/fuse box, coolant tank sensor, abs/traction control etc....if you don't end up using it you can always sell it, but im not sure how different it is from your car. Better to have it than not. This way you will have all the wiring from the dash up.
Cruise control cable and throttle cable.
Hydroboost. If your car doesn't have it, you will need it in order for the 4valve to fit. I "think" you can plumb into your rack. If not, I know i have an extra one, or pick one up yourself. Hydroboost unit/MC, the lines, the pump (should be on the engine) etc.
Grab whatever hose is attached to the car.
PATS. grab the gauge, cluster, computer, keys, key cyl and the module. The Pats module (little green connector and 10" or so harness) is in the column, right above the key. (probably just grab the entire column intact.) Grab all of the locks, the door, glove box, trunk.
That ought to get you close. No reason why you can't pull it off yourself, no need for a tune either (though i would throw an intake, pulley and dyno tune on it).