Any other sources that are not $300.00 plus. Ghost chair replicas can be found for $125.00

how about having a local upholsterer make a stool for you?

I got one for a client the other day, they love it. The only concern they pointed out was that the chair leg at the back base flares out a bit, and it impedes walking through a narrow path between the bed and vanity.
I would add that you are paying a high price because the quality of perspex use is sturdy, the lesser priced ones are made of cheaper and thinner elements and are more likely to break... Just do some careful "test driving" before you commit. You may end up being penny wise and pound foolish!

Thank you! A BEAUTIFUL BATHROOM!! Love bathtub in the middle. I did a perpendicular bathtub
once for myself and loved it!