F.Y.I.
The alternator removal is most likely very easy if you have access to a lift. Even with jackstands, lying on your back reaching up to get to those bolts and especially the plug for the wiring harness (tucked fairly high up in there) can be a pain. not impossible, but not real fun. I attempted to remove my alternator when the original went out, and could not get it to budge, even with all of the bolts removed. (In hindsight, I think I needed to use a flathead to slightly push back the round cylindrical housings that the bolts go through. Either way, even with NO bolts installed, I successfully drove it about 10 miles to the Ford dealer to have them finish the job).
When my poorly built rebuilt unit from Advance Auto gave out a year later, I simply took the car and replacement alternator to Pep Boys (and I NEVER go to them) to have them do a simple swap. Labor total was about $80. Ford dealer charger $249 total in labor. No diagnostics (I had already performed that), just pure labor . Ripoff.
If you are hesitant about doing it yourself, I suggest getting an OEM Motorcraft unit from one of the forum vendors, and having it installed at a local gas station or shop. again, it's an easy job with a lift. Probably will take them 30 minutes TOPS from start to finish.