Any chance of you tracking down the official releases of this stuff? It seems like it was available on Spotify and Amazon at some point but has since been taken down. Or you could edit a rip from over on Zophar's Domain (or make your own). Good luck!
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Hey. I see what you mean. I remembered them being on Amazon but it looks like the links are no longer active. I did a quick search but was unable to find anywhere that I could obtain the OST's, I'll keep you posted if we come across any of them or if they come back on the market.
Thanks! Good luck!
Update: sittingoncloudsost.com found and edited some gamerips of these, but it's still a shame not to have the official releases.