Replace Window on a Catalina 22

Mar 23, 2015
259
Catalina 22 MK-II Dillon, CO
Anyone have advice on replacing a window on a catalina 22 mk II? I was knocked down last season and window was cracked. I have looked around and it appears that you can only purchase all four as a set, about $600. I only need one.
Talked to one supplier and the windows are made of 3/8" acrylic, which can be purchased locally and I should be able to match the shape. Anyone done this and are there any issues that I am missing?
Thanks,
cec