I think I actually have the link to your Vader cut, OutboundFlight! : )
I need to watch through the whole thing sometime.

And yeah, I think a 6-in-1 could work. I actually have some ideas, so I might make a 6-in-1 Fanedit sometime. Using the Luke vs. Vader Bespin duel as a vision to replace the Dark Side Cave vision/duel on Dagobah allows you to bypass Bespin, Han’s Carbonite subplot, and Jabba altogether, which drastically cuts down the runtime. That actually works very well and makes the film flow nicely.
But adding in the sequel trilogy would be nearly impossible because it just doesn’t flow very well with the original six films anyway (plus nine films is way too many to fit into one).