Shower trays are available in loads of different sizes, just browse the various suppliers to see if there's one that would "slot in" (with lots of grunting!).
Hard to tell just from a photo, but those pipes look to be...
1. In the way
2. Botched with lots of unnecessary corners and fittings
3. Crustily corroded
I'd be thinking about blowing the lot away and starting the entire bathroom again from scratch. Potentially with a new layout if it can be improved.
Hard to tell just from a photo, but those pipes look to be...
1. In the way
2. Botched with lots of unnecessary corners and fittings
3. Crustily corroded
I'd be thinking about blowing the lot away and starting the entire bathroom again from scratch. Potentially with a new layout if it can be improved.

