Here's a link to the best write up and wiring diagram I've managed to come across.
http://www.tacomaterritory.com/~dickfoster/Pics/Taurus%20Fan%20Wiring.pdfThe pig tail on the PA fans dont match the ford one. You either need to splice it all with quick connects, or grab a for pig tail or two when you are at the wreckers.
In summery, you'll need for the above set up
Pick an pull assembly 17$
Spare motor from PA 20$ optional
Temp sending controller 35$ from mopac
A 3 way switch 20$ mopac
A 50 amp fusible link 15$ auto value
Some wire 10g minimum IMO 20$
A 50 amp relay for high speed 26$ starter relay will work.
So, basically 160 gets you a 2 speed electric, set up with a shut down override, and a spare motor. Maintenance after the inital investment is at most a 26$ relay.
Compared to the 240-280$ clutch fan assembly's that come stock, and blow up on a regular basis, its a pretty good investment.
hth