Info Wanted: Return Of The Jedi Album (lp) information needed

Hey, im looking for information on the LP of ROTJ, as ive heard it was released or being made before some dialoque had been finalized, and that many unused takes exist on it, any one happen to have a copy of it they wouldent mind DMing me? im interested in checking it out and seeing what i can salvage from it, aswell as wonderinf if it contains any snippets of Lapti nek or jabbas sailbarge music, i know their was one done for a new hope with an added voice over, and i know its been used as a source for the restoration fo the mono mix, but ive seen nothing on youtube abotu retun of the jedi