First-Time Bath Remodel Plan Review

[Paul S.]

Tenant moving out end of July and the bath has a good amount of mildew. This is my first rental and first turn so I'm trying to nail down the best strategy for standardizing bath design to prevent mildew, reduce risk of damage, and make cleaning easier.

After a lot of reading the forums, below is what I'm planning to have done.

Main questions for the forums are:
1) am I missing anything?
2) should I change the plan somehow?
3) should I replace the ceiling drywall? If so, with what?? Hardibacker or drywall? Currently has problems with mildew, paint bubbles, etc.
4) Is the estimated cost between 1,500-2,000 with a contractor doing the work?

- remove existing tile
- remove drywall in surround and window area to the ceiling
- replace drywall with hardibacker redgard hardibacker large porcelain tiles (16x16, 12x24) with smallest grout spacing possible
- highest quality caulk that is mildew-resistant
- tile floors, 4" base/behind/beside toilet, in addition to tub surround all the way to ceiling
- angle tiles away from block window
- re-install shower curtain rod 
- replace fan/light with higher-performance model with humidity sensor
- inspect fan ventiliation to confirm vent going through ceiling
- inspect bath, sink, toilet plumbing and waste drainpipes
- add quarter turn water shut-off valve
- replace bath fixtures to single stem handle
- replace bath drain with grid drain