I'm in the process of doing this right now and have posted several questions as to the best way to remove it on my 01 Duratech equipped Taurus. Note, not an 05. Regardless, I got no response, thus I compiled information from past postings and just pulled it the other night. On my 01, with the Duratech, it is a @#$%@!!! After dislodging the compressor, I was hopeful that I could get it out on the passenger side, but that was not physically possible, as the motor mount obstructs removal. I turned that compressor every which way to remove it and it just was not happening. I then removed both fans, the fuse box, a radiator bypass tube bolted to the exhaust where I was then able to get it out by pulling it up through the area where the fuse box was.
As to the clutch itself, there are those here who have replaced it while the compressor was still in the car....not sure of the model year. I thought about doing that, as it was not my compressor that was bad, but rather the clutch. However, my car is an 01 with 225k on it, and I did not want to risk putting a new clutch on a compressor that may soon need work. And, from looking at things, removing that clutch with compressor on car is no easy job either. Ford wanted $700 for new clutch and $900 for whole new AC
Compressor. That ought to tell you something. And, the clutch by itself is not a whole lot cheaper than the compressor with clutch.
Not sure I've helped you out any, but I do sympathize with you. I'll be installing my new compressor this weekend.
Good luck to you!!!