Before I begin with my experience...change your own alt. ****!
I'm 17 and I went out and bought a chilton book for my car, and changed my own alt, and it wasn't hard at all.
Anyway. Nate shipped me an alt he said would fit. It didn't. I contacted him, shipped it back, and he sent out a new one. A week later I had a perfectly working 200A alt. The first alt. didn't fit, but it sounded as though he had never worked with a SHO before, so he did not realize I would have an extra inch of clearance to fit the new one. I was mad about the extra week, but my new alternator works flawlessly.