Hawkwind - On Sundown (Live At Edmonton Sundown 30 Dec 1972) (CD 2005)

Not the Space Ritual but the recording in terms of quality comes close (in that it is excellent). This recording provides an outtake of the orginal Space Ritual album in that it was recorded across two venues Liverpool Stadium and Brixton Sundown (Now The Academy).
This Album is the alternative take from the Brixton show and not the Edmonton Sundown as listed on the case.The recording is just as mesmeric as the orginal and in my opinion some of the tracks are even better than those picked for the UA release.
Anyway a great adventure with our cosmic heroes.