I am currently in the process of having produced, some etched brass parts for LSWR signals in both 7mm and 4mm scales. In particular brackets as used at Seaton Junction and others.
Also under development are LSWR pattern lattice posts 30ft and 45ft in length with laddering to suit in both scales. The latter are presently not available in 7mm scale.
The initial designs are currently with PPD, so hopefully in a few weeks….
Now I am starting to get the hang of the CAD design thing I will be looking for other possibilities in due course.