I tired to do something very similar a loooong time ago with the Super 8 mm digests that were released in the 1970's and early 1980's. I only had eps IV and V to work with and when all three movies came out on VHS I thought, well, I can now chuck these or.....

There are a lot of little things that may be moved around and some things work better than others. The source material is what it is and imho I think that the audience has to suspend a lot of what they already know to try to enjoy a project like this.

The scenes on Hoth could be used to represent the northernmost/southernmost latitudes of the fourth moon of Yavin (i.e. there could be a walker assault on the rebel base concurrent to the battle with the Death Star....or is that something you're trying to get away from?).