The chrome piece snap fits on the black T-frame below it in the photo.
Just talked to the shop -- they'll have all of the needed parts from Tesla on Friday so I'm expecting all of the work to be finished by the end of next week.
Just so every one knows, installing the new hood (facelift version) creates other problems. The latch may have to be upgraded and the nozzles for the front window washers (which are on the nosecone version hood but have been relocated to the windshield cowl on the facelift model) may require an upograde to the new cowl.
So bottom line is that unless you want to through all of the hassle I've experienced and spend as much as the aftermarket solutions cost, I'd recommend you go with the Unplugged version or the Karstyle version (if they ever get their act together). Otherwise you'll spend about $3,000, be without your car for 2-3 weeks, and have to work with the shop doing the install to rig solutions for things like the change in the frunk trim panels. It's my nature to see these things as a challenge to be overcome, but if it's not yours, save yourself some major time and trouble and go with Unplugged or other aftermarket options (please also note that Unpluggged is the only one that's actually being delivered and installed). The others appear to be vaporware, at least for now.
At the outset of this project I thought it would be much less expensive and easier than it turned out to be. I was wrong, and if my posts misled anyone, I apologize for that. Reality sometimes has a way of biting back.
When the work has been completed, I'll post a final list of the necessary parts, costs, problems, and steps for the masochicists among us