As promised the screen is now a permanent fixture after many attempts.
When I first worked on this model, years ago 20+ I fitted the screen using Plasticard 1mm sheet which was encouraged to go where I wanted it to fit using white Plasticard channel. For some strange reason I could not get channel to bend in quite the same way this time as it either kinked or snapped I even tried inverting another length of the same thinking that filling the trough would stop the kinking, but no.
My solution to this was by gluing 1mm square styrene section directly onto the topsides holding it in place using Tamiya masking tape which I love using until it hardened.
I then cut out a 1mm thick Plasicard screen using what was left of the old screen as a pattern, taped it securely in position against the styrene channel and gradually glued it in place. Last time I had channel running over the top of the screen, I think that I like it better without, more streamline and modern looking, 🤔🤔
Interestingly this plasticard does not like exposure to u.v. or is it that like the rest of us does not like getting old, the stuff from the earlier build was really brittle and just cracked.
Anyway onwards and upwards regards ChrisG