Just some basic identification. With prototypes like this everything is very custom looking in which they will document for standard production molds. ALTHOUGH the production model will be identical, it will certainly look different on the inside as far as mounts, welds, and bends go... etc. Think of it looking "more refined". I doubt that perforated metal is going to make it to production.
What you're calling a "shift fork", I know as a "clutch fork". Potato potautoe I know. LOL
The Metal screening (perforated metal) is so the body panels can be attached with silicone (or simular based) adhesive. This allows the sealer to not only be on the face of the mount, but pushing through to keep a better grasp on, the two mounting faces. Not to forget, tons of room to manipulate and square the panels to the frame, as well as each other!
The screens may or may not be included in the final product. It is actually a very sound base to mount the panels, as well as absorbing sounds and vibrations. IMO.
I'm "peeing my pants" excited to see forward movement on the P5!!