Went to Arnold boats in Louisville Thursday. They have about three tractor trailer loads of misc. surplus boat canvas. About everything from bimini tops to bow covers to full enclosures (all new in boxes). I took my boat up there and was able to piece together a full standup enclosure with sides aft curtain, windshield and full frame. All Sumbrella material. It was not an exact fit, but I have an upholstery shop making a few minor adjustments (adding a 6 inch extension to the side curtains, extending the frame height by about 10 inches and just tighteing everything up).

If anybody needs new canvas you may want to check them out.