I'm diggin' your updates Ron. Congrats on the continued progress. I was noticing all the stereo stuff you're putting in the back. I went down that road also when I first built my car. Given that you're sinking a lot of money into a lot of top tier racing parts, and having my own experience with my own car, I'd seriously suggest making all of that stuff easily removable. That way you can have your cake and eat it too. When you want to get really serious about lap times on the track, make it so that you can pop that stuff out(which it looks like you are/were already thinking about with the easily removable cage bars). I ended up doing that with my stuff also with quick disconnect harnesses, easily accessible mount points, and even a little velcro on some panels. Also went back and rebuilt all of my trunk panels last month out of lighter weight materials and shaved another 15lbs off of those. You've probably already thought about all of that and I'm just pissing into the wind here.
I'm thinking my rebuild will be done about late March, early April, so it'll be interesting to see who finishes first.

I hope you do and I hope to see you and this gorgeous ride of yours at RTTC.