new bathroom

[mikejt]

Hi, I'm just starting to fit a new bathroom, everything's out, I'm fitting a pvc ceiling, new bath sink and toilet and re tiling the walls and floor. My question is, what should be done first?

I was thinking in this order:
-Fit the battons for the ceiling and run the cables for the shower and light
-Put the bath in place and mark the top
-Remove bath and fit batton to wall (for extra support)
-Tile walls up to the new ceiling support
-Install PVC ceiling, lights and extractor
-Tile the floor
-Fit bath toilet and sink

Is there a better order to do things? And i assume the tiles should be slightly lower than the top of the bath?

Thanks in advance,
Mike