Active job

Re-do ensuite bathroom from top to bottom

I am wanting to completely remodel my ensuite. I would like it turned in to a waterproof bathroom. It presently has a shower box (premade style cabinet) a vanity and cupboard and a toilet. It also has a heated towel rack and a fan heater - hrv ventilation in the ceiling. I would like someone to be able to do the job from start to finish - will need plumbing and tiling.