Replacing sliding side windows on 268 Islander with fixed window

[Hookup1]

Has anyone replaced their sliding side windows with a fixed window? I never open them. I'm getting tired of the leaks. Had them out several times over the years but it comes back. I'm looking at the Trim-Lok material with a Lexan or acrylic window (slight curve to window) and re-installing window trim.

 

[Hookup1]

Here is the update on the window replacement. Two years later 2 of the 4 windows are leaking. They were caulked in with 3M black silicone. They made a gasket but it has no adhesive properties. Peeled off both sides effortlessly. I'm re-doing with an automotive polyurethane. Done right done once - unfortunately this wasn't the case.