acer, have you thought of D-I-Y? I had the same problem with our en suite about ten years ago. Job seemed too small for the tradies, couldn't even get a quote. Took a few months, but did the whole thing myself except for:
Got the shower area professionally waterproofed before tiling (the waterproofer was a mate) and had the shower screen installed by the manufacturer. Didn't need to change any electrics - plastering, tiling and plumbing done by me.
