Now, on to the destruction. During the tear down, I read the EA directions and it said remove the engine cover release bracket so the engine bay battery rack will fit. So I unbolted the catch mechanism from the mount welded to the rear of the rear engine firewall. The car was then painted and now I come to realize, with some advice from the helpful folks on the 914EV forum, that I was meant to remove the mount too, and the hard tube that shepherds the release cable from the passenger compartment! This was going to be ugly, given the delicate nature of removing a welded metal bracket from a newly painted area. You can see the tube curving in from the right and attaching to the mount.
The tube is very stiff and tack welded to the frame as it comes out of the passenger compartment, so I decided to cut it off, and I'll pop a small rubber cap on later.
Here's a closeup of the mount we need to remove. I taped off the areas I was likely to bang into for a little protection. I had to climb inside the engine compartment to get the proper access.
With the use of a sawzall, jigsaw with a metal blade and angle grinder, the mount is now gone. I painted it with rust fluid and will prime and paint to match the body later. It came off better than I thought it would.