I am a contractor, and have installed tile a few times, but not a plumber. Looking for suggestions on best construction methods for a new bath, including replacing the one-piece fiberglass tub/shower with a tiled shower. I would like to build the shower pan and tile it rather than purchase pre-fab pan. Looking for the best compromise of quality, longevity, value, and aesthetics. Is PVC liner better than Schluter Kerdi? Should I use mortar base or some kind of pre-fabricated kit for sloping the drain. Any step by step instructions or links that describe the process with some details on things that might not be obvious that I should know? Thanks.