I replaced one of my side windows about7 or 8 years ago. I got advice on how to do it from various surces when we were still on the Yahoo Groups as a forum platform.
It is no easy task to get the glass inserted into the window frame grooves.
I don't recall now, but I believe that the thickness is detailed in the parts manual for your plane.
Incidently, I replaced the window with plexiglass from the hardware store which is 1/8" thick which is thicker then the recommended size. It was a struggle getting installed.
Plane less WIL
