I managed to finish the roof lining at the weekend and have also installed the NOS sun visors bought individually from Paul Colbert and BerT3 at a far more reasonable price than currently advertised by Lars Neuffer whose prices simply reflect the ever escalating price of NOS parts.
I have also installed the correct aluminium stemmed early rear view mirror extracted out of my stash of parts as the one that came on the car was from a 6o's beetle.