I was in the same boat with my reno. I decided to buy new sliders from Motion
Windows in Vancouver, WA. Yeah, they are not
jalousie windows, but in my
boler, the square corner cuts meant that my options were to 1) buy new custom from a place like motion
windows, 2)find a set of second hand
windows or 3)reglass the corners and buy
Scamp windows which are sorta jalousies.
I am happy with my decision because its DONE, I don't have to think about it any more. I haven't yet installed them but they looked beautiful when I test fit them to the shell and I have read good things about the quality.