Thanks for the suggestions! I can't build a false wall as unfortunately the toilet is at the end of the bath. I also can't use a mixer shower as it stands because the taps are the wrong end. hmph. I don't see a slope in the bath so maybe I would get away with changing the taps to the other end and putting a mixer on there...? :?:
Right, now I know where you are coming from. You originally said you wanted to fit a mixer or power shower. So I think we all assumed you wanted to screw something to the wall rather than a bath shower mixer.
I ought to point out, you cannot (and don't need) to fit a power shower with a combi boiler. Pwer showers require a low pressure store of hot and cold water (header tank and DHW cylinder etc). A bath shower mixer would work pretty well.
I assume one end of the bath is up against a wall? Is it a solid wall or stud? Could pipes be put in or through the wall to supply a conventional mixer shower?
If you want to swap the bath round, the plumbing should be fairly simple. The problem is going to be getting the bath out without damaging the tiles (particularly undoing the two "L" shaped brackets) and getting a proper water seal when refitting.