A collection of master tapes and metal masters (called stampers and mothers) which purport to be of Sun Ra material are being auctioned on eBay with a starting bid of $20,000 – currently at $26,000. The collection is from Variety Recording Studios which Sun Ra used from the 1960s to 80s. Among this batch of masters is Sun Ra with John Cage.
To repress on vinyl though, you'll need to find the same equipment used in studios between the 60s and 80s.
More details on eBay – the auction ends in eight days…
[Hat tip: Spin]