back to wall toilet

[sws]

Hi again - following all the useful advice previously, I'm going to go with a back to wall toilet / concealed cistern.
Is it possible to install these temporarily until I get the tiling done. I'm just aware that the floor tiles will raise floor level a bit, so if I plumb it in before the tiler does his bit, the flush pipe/waste will no longer line up. If I wait until after the tiler, I won't have access as he'll be tiling behind the toilet, so access will only be from above the cistern.
I supose I can use a flexi waste connecter, but will the flush pipe have enough adjustment to allow for the change in floor height? I assume the concealed cisterns have adjustable flush pipes which are cut to length (or is that incorrect)
Thanks

 

[jack17]

If its a floor standing pan you could put it on a rasied a board same thickeness as floor make up and same for behind for the tile make up then just removed a tile as normal when ready.

 

[sws]

Thanks. I assume if there's a problem, flush pipes are interchangeable anyway? so for a fiver could change that- am I correct?
Is there generally a few mm 'give' anyway in these or do they need to be spot on?
sws