So I'm guessing a lot of you soundtrack freaks already know about this site:
https://www.varesesarabande.com/default.asp
If not they have a lot of limited edition and usually pretty complete soundtracks offered in small print runs. My brother who is a huge soundtrack fan turned me onto it. He picked up the complete score of Ghostbusters - which I guess was pretty rare - when it was released there a while back.
Right now they have a complete score for the new Star Trek flick due to ship next week. I've got mine on order - looking forward to it - I hate incomplete soundtracks.
https://www.varesesarabande.com/details.asp?pid=VCL-0410-1108
I'm still waiting for complete scores for Attack of the Clones and Revenge of the Sith.