Thanks guys, I'm learning a lot today. Went to Camping World and found that a new window like the one by the dinette runs about $310. The exit window is the same size. They called Forest River and the part number is 20x09574a.
That would give us the ventilation, but would do away with the exit capability. Honestly, with a door in the bedroom 6 feet away, I see no need to have an emergency window at all. I guess it's our nanny regulators watching out for us again.
Looks like Milzat's setup is the best way to go. I found what appeared to be same hardware on Hehr's part's page: Page Title
. However when I checked their size charts, my window size wasn't on the list. Makes me wonder if it's a different brand. I'll have to look at it in the daylight and see if I can find some information. When I looked the other day, I didn't see any, but perhaps it's on the glass.
I can't find any info on window screens. The screen size I need is approx. 41 1/2 x 21 1/2. With the T bar type slide and the handle on the screen, it should work.
Any ideas on finding the screen?