I think the most complete non special edition of OT’s music on CD is the Star Wars Trilogy longbox. It definitely has Lapti Nek and Ewok Celebration (Yub Nub).
Yes! Turns out this is the set I found only the bonus disc to at a record store. I was excited it had Lapti Nek and Yub Nub, and I knew it said 4 on the spine so it must be part of some set. Thanks for the discogs link.