Sorry to take so long to reply; I just saw this. We chose to refurbish ours. You can get new ones from Andy but they are about $400-450 which is a bit steep.
We used an epoxy paint on product the name of which escapes me. But frankly, considering how much money we spent on out AS, we should have just replaced it.

We are trying to redo our shower in our 93 excella. Did you get a new shower pan for yours or did you refurbish it? If you got a new one, where did it come from ?