Live Spirit recordings are rare. I have a friend who has quite a few of their shows that that he recorded, but even I can't get my hands on any of them. The band allowed him to make the recordings providing he didn't make them publicly available. To his credit he has respected the wishes of the band. I have a couple or so of their live performances laying around somewhere, but they weren't the greatest recordings. I never had a chance to see them and deeply regret it.
RIP Randy California.