missing one shower door

I am missing one shower door in a rectangular shaped shower. (pic attached)

It seems as though its very difficult to get a replacement part.

I talked to a glass company to make one and they said that they could make one for €170 but that it looks like there is a bonded fin at the side, which they don’t have any facility for getting residual glass out of this cleanly so they said it may be more cost effective to get a fully dressed replacement door.

Getting bramd new doors fitted is upwrds of €300.

Would there be any other alternative?

Thanks