Nice folks over at #anime-ongaku released it (along with their version of OST2, translated trax yayy)...
Click Here for a torrent
Track 2 so far is my favourite...Roy + Hughes/Havoc/Falman/Breda/Fuery/Ross/Bra
BT is the only way to get it, so maybe someone will be kind enough to host the single for a while once they get it.
EDIT : Linear notes scans: Track 1 / Track 2 / Track 3