Flip those sheets are expensive, and too small as it happens.
But it's giving me ideas. The bakelite sheet would be perfect for single ply black, not quite as jet black and glossy as a modern PVC pickguard sheet. Just the right level of sheen.
I'm going to rebuild it tomorrow with the golden brown vomit tort that came with it, and then have a hunt around to something suitable. Either single ply black or very, very dark tort.