kebo

Hey all,
I'm doing a bath remodel, and will be removing the existing shower pan and replacing it. The shower I have is 48" x 34" and looks something like this from the top:
___________________________
|....................................|
|....................................|
|....................................|
|x..............d...................|
|....................................|
|....................................|
|....................................|
c-c-c-c-c-c-c-c-c-c-c-c-c-c-c-c-c
x- faucet
d- drain
c- curtain
(hope you get the jist)

I want to add a little wall and make it like this
___________________________
|....................................|
|....................................|
|....................................|
|x..............d...................|
|....................................|
|....................................|
|....................................|
=======-------DOOR------------
(this is not to scale the added wall is only6"-12"

problem is I can't get a shower pan to acomodate the added wall. So I'm thinking about hot mopping the pan, but I've never done it: I've built my own house before, but have never done or seen done a hot mopped shower. Have you ever done a hot mop before? Are there other ways? Any suggestions, pointers, or comments in general?
thanks

kevin