So I gave up on finding the big staple gun, which has gone walkabout in the house and nobody knows what happened to it. I do know that it isn’t any of the places I can remember seeing it in the last several months, nor in any of the places it might have been used recently. And having given up on finding it, I drove over to Home Despot and bought another stapler, so I could start doing the window screen wire.
I came home, stapled screen wire to three sides of the first frame . . . and now I can’t find the tin snips, to cut off the end of the roll of wire!