Yes, that is "the" snare - the holy grail for Copeland fans. He supposedly worked a lot with Tama to get them to reproduce the sound of that snare. I think that's how they decided to do a welded shell, rather than spun or cast - if I recall, the Jupiter was a brass welded shell. Either way, the Tama is a terrific snare, and it was cool to see his Jupiter.
Man, what a great idea for a big recording/jam room! Have all the instruments ready to go with mics patched into the system. Of course! It would be a blast to have that much space and time.
Regarding the Jupiter behind the Tama kit, do we know that's the one he used back in the day? And if you wanted to get closer to the sound of that snare, wouldn't the Tama Copeland reissue be more accurate than the Pearl Jupiter?
As I understood it, the original snare was pieced together from Pearl and Tama parts, although the shell was something of a mystery.
I've been wanting both the modern Tama and a Jupiter for some time. The stars haven't aligned with my pocketbook yet.