I need cheap 900mm shower door

amd

Hi all, I've been shopping around and googling like mad, but I can't find a recess shower door to fit my B&Q 900mm square tray for less than £200 delivered!

A bi-fold door would be preferable because of the space limitations in the room, however, they're even dearer!

Frankly I think that's mad - I'd rather use a cheapo shower curtain at this rate, so before I confine myself to showering with plastic stuck to my rear everytime I bend over for the soap :rotfl: can anyone point me in the direction of a cheaper door to make my new shower experience more desirable - online or high street!

Thanks in advance...