Innovate Building Solutions That is a very nice looking shower - I'm guessing the curved glass alone for this project was $4,000 or so - is that correct?
Another approach would be to use "standard curved glass enclosures" - i.e. they are made in standard sizes so the cost per unit is not as much. I'll include a link to show more of these units and an image of one example below
Chuck Mills Residential Design & Development Inc. I'm going from memory but I think it was around $5K for the S shaped tempered glass wall in the shower.
Another approach would be to use "standard curved glass enclosures" - i.e. they are made in standard sizes so the cost per unit is not as much. I'll include a link to show more of these units and an image of one example below
http://innovatebuildingsolutions.com/products/bathrooms/fleurco-glass-shower-enclosures