I'm very interested to see how you frame the acrylic into the wood. I've thought about this idea before but I couldn't picture how to do it properly without complications. I know you've explained how you were going to do it but I'm very interested in pictures if that's cool. I've always thought this idea would be far superior to any other way mainly because the window will no longer rely on water pressure to hold it in place and because there's less of a chance of the window ever being able to work itself free if ever.