Ok so refitting bath panel tonight (it's an old one) and it shattered/split reason being A) I'm a bit cack handed, B)the wall did not have tiles when it was originally fitted so lost approx 10mm on length.

So I've looked at all the usual DIY outlet but no one seems to sell the bath panels similar E.G 12 cm vertical from bottom then it bow/rounds out up to the top of the bath where it clips under.
Other wise if I fit a modern straight sided one i'll have a half moon gap in the tiles.
Any one know any good suppliers in the North West / Greater Manchester area?