A few hours work this evening and I've got the beginings of the screen base. The shape is just rough at this stage and it'll need a bit more tweeking and finishing but you'll get the idea.
Just checking the clearance for the rear vision mirror.
I'll make a patern for the screen itself from thin masonite. I'll then take that to the plastics supplier and they can cut me some marguard sheet and polish the edges.
Cheers