AJ, that’s awesome. That’s the kind of “I can do this!” attitude I’ve always admired. You have my utmost respect, mainly ‘cause that’s just the way I would have done it! :B
Unfortunately, the OP’s camper doesn’t have a single window with dimensions big enough to do that. His camper is very much like mine, especially in the size and design of the dinette slide out. The biggest window in our campers is the one above the dinette table. But, because it’s in a slide out, the window rough opening is only about 20” tall.
It’s always good to keep all options in mind though. Your technique may very well save someone else’s day. :C
:):)