Bruce
Thanks for your interest !
You make good points on the seams and fabric;
-- I am just not sure how trustworthy seam tape will be for a good seal. I was thinking of sewing only the bottom of the window glass to the exterior and covering it with some matching fabric.
--The fabric and zippers seems to be in pretty good shape so I am tempted to salvage it. If I can get some learning out of this I can replace the entire canvas when needed in maybe 3-5 years or so.
Looking forward to loosing the Velcro as its too leaky
But I am definitely open to suggestions -- Pics posted below.
Rear panel with glass down ( note the misaligned bottom which was common as the screen stretched and sagged unless special effort was used to align it )
Rear panel with glass up
Torn screen with uv damage