The only changes I would make that I have not seen mentioned yet are:
the scale of the Millenium Falcon going into the asteroid cave and coming out is different,
and
when Lando goes up to rescue Luke he travels up what seems like 15 feet of interior, and through three hatches. Take out the first hatch. It screws up the scale of the Falcon.
If these were mentioned at all, I missed it, and I apologize.