Photo 1 Foam and foam cover glued and stapled on the back board.
Photo 2 Another few of photo 1.
Photo 3 the pleated vinyl lad out over the foam.
Photo 4 the top plate of the vinyl cut out.
Photo 5 First attempt to sew it up, this did not look good.
Photo 6 the other side did not look any better; I decided to start again with the sewing, a long process removing the stitching.