You are a Madman and a Scholar... I salute you.
If you have to do some extra work anyways, I say wait until next May as a weird 34th anniversary celebration. Hell, you could put it out on the very day EMPIRE came out. That will give you time to watch it all the way through to look for any seams to clean or whatnot.
PS: no need for clips, but will there be some more side turret action from the AT-ATs, especially when you see them moving/aiming at something (and not just the long, thin lasers, but the shorter "mini gun" versions above them)?:
Also, have you tried adding a "glass" reflective effect on the AT-AT window (like above)? Something else I noticed: the big guns underneath the head have a cylindrical part in the rear of the gun, indicating they can point downwards independently of the head, much like the side guns:
