The youtube clip is from The Satan All Stars. Unfortunately, I think they all played together only for Jack the Ripper. ;( All 13 (lol) members also played Jack the Ripper together in the Ultimate Black Mass.
As for the ULTIMATE BLACK MASS COMPLETE, yea it's a DVD box with the 3 day live in its entirety. Good luck finding it tho since it's been long out of print. But on the plus side, someone had uploaded all 8 DVD's.
If the links aren't dead yet I can pm them to you.
Anyway, love Seikima-II! They're my all time favourite band along with X. I went to their concert in Dallas and then to X Japan's concert later on in the year so 2010 is hands down one of the best years of my life.