I just did this myself, and it took 5 hours. I was taking my time, cleaned things real good, ate dinner in between.
You don't have to remove the AC/ or PS pump...
Today I did it this way...
Disconnect the Negative battery terminal. (Safety)
Remove the drive belt.
Remove the 4 bolts on the fan
Unplug the AC electrical line, so you don't mess it up
Then remove the shroud, and the fan at the same time.
Take off the water pump pulley
Remove the AC/PS bracket
Used tie downs to secure the AC/PS to the Strut tower brace.
Disconnect the Water hoses from the Water Pump
Remove all the Water Pump bolts
I cleaned the bolts with Gunk, and a wire brush, then hand washed them with soap.
I removed the Thermostat neck, and cleaned it up inside and out, (removed all the gasket goo), and pulled that hose off also.
Remove the Water Pump
Cleaned the block real good with scotch pad, and fantanstic
Mount the Water Pump
Stick the Tstat back on the neck with RTV, and make sure the little vent thing on the TStat is facing UP. Then stick the gasket on the Tstat neck.
Tighten the Tstat back down.
Bracket back on, Hoses, Belt, reconnect the AC electical wires, good to go.
I also cleaned the fan with a screwdriver to knock all the dust loose, then hit is with the air hose, and made it clean with all purpose cleaner. I did that to the Fan shroud also.
Air hosed everything off really good, and put it back on.
Lot of work, but the speed shop won't clean the Tstat neck (deposits reduce flow) clean the block, clean the fan, or the shroud.
I took my time, and did a good job. I would not pay anyone to do it, because it really is not that hard.