As far as the cuts in that one video you said you were unsure of... the music fades out pretty much after Luke falls out of the Wampa Ice Lair... most of the rest of that cue is completely unused. It remains unused until Chewie leans his head against the railing after the doors have shut and it double iris' out to Luke in the snow... the rest of that is pretty much there although I raised it in the mix. Then you have the unused intro and ending to Snow speeders.
I love the original Probe Droid... but some people really don't...
As for how to end it so that you can have the silence inside Echo Base up until Han says "well so long princess." and she runs after him, I'm not sure what you could insert... but I'm certain there's something...