If you can... try to trade for this show or find a vine being offered for it or a torrent of it. Shows re-circulate often and tupchurch had a good find on that one site but I just couldn't bring myself to buy something that is openly traded on the net. (But if you can't find it, then that may be your only option.)
I don't know if you visit the torrent version of this site at www.jamtothis.com
but there have been 2-3 Journey related DVD shows/documentarys posted there in the last couple of weeks. I thought one of those was a Budokan but can't remember if it was 81' or 83'.... sorry, I just remember looking at it and that I already had it.