Great to hear from you - in my opinion all who know and appreciate and respect the maximum element that is film music are equal!
I did know Varese released Psycho II but I thought that was just a one time deal. Varese released a slew of MCA LP reissues, that also included Earthquake, Jaws 2, and Firestarter. Although none of those have been released again, I do know that Firestarter was kept in circulation for years after Earthquake, Jaws 2, and Psycho II weren't. I my guess is that they went out of rights, whereas Firestarter is probably still held by Varese.
Here's hoping that P2, Earthquake, and even Jaws 2 can get reissues soon!