Beautiful write-up. Even given all the caveats, I still have to say that it would be awe-inspiring if it actually blew within our lifetimes.
Respectfully request your permission to ping you to this post if it does blow? Just to give an understatement of the century award? ;)
/johnny
True it would be.
However, being that its 600 light years away (+/-), we wouldn't see it. The Super Nova would be seen by 'us' around 2610 if it went today. Unless it already blew back around 1410 (+/-), then we'd see it 'in our lifetime'.
That's one of the things I love about Astronomy / Cosmology, when you look at a a Star you are looking back in time. How cool is that ;-)
(Sorry for the day late comment)