Been househunting and have seen a place which will suit, except that there is no shower in the bathroom. it has a sloping ceiling which means there isn't the height to fit one. At the moment they have a bath mixer tap with handheld shower spray but it is just fixed a short way up the wall in the middle of the bath - and no screen. I think you'd have to crouch to get under it!
There is some space downstairs to divide a room and create space for a shower, but I have no idea how possible this is to do or how much it would cost. I appreciate that adding a toilet could be problematic, but is a basic shower cubicle easier?