Just to complete the story. I have wedged both top hinges now and the fit of the side screen rubbers is now ok with no fouling of the windscreen frame. I used a piece of 0.8mm aluminium on the drivers door and a thin piece of plastic about 0.35mm thick for the passenger door. I had to move the door catches down slightly but the main problem was the door catching slightly on the B pillar on the passenger side. I had to shave off 1.5mm from the back end of the door above the catch on the passenger side. So no need to get the Stanley knife out!
As an aside, I bought some leather offcuts from the Morgan factory during our visit there last year. I've stitched up some leather bonnet corners which match the bonnet strap. It's nice to know that somewhere in the world there is a Morgan that has the rest of the hide covering it's interior!
