I'm back working on the CAD this weekend, taking a break from the main grip and concentrating on some of the switches.
 
This is the trim switch and plate, designed in Fusion 360 and printed for a trial fit, the first photo shows my parts alongside a complete, original grip, the second are my parts trial fitted on my own grip. I have a couple of tweaks to do but I think with some sanding and painting these will do the job!

I'm planning on making these models available free of charge to other restoration or sim project, more details soon!
 
CAD files in progressCAD files in progress
3D printed comparisonTest fit of printed parts