Nice screen job, Jake!
That's exactly what I want to do now on my bus. What are the dimensions on your screen stock? I see that the frames use 1/4" lath on top of the screens, but what size is the frame material itself? In the picture on your work bench it looks to be about 3/4" x 1".
The black paint goes very well on the bus. The hard drive magnet idea is a good one, too. Where did you come by so many of them?