Saturn V with the Lighting Effect Starter Kit. No other modifications to the original Lego set has been made, but I'm considering rearranging bits and pieces on the inside of the First Stage rocket so I can squeeze the battery pack in there too.
Fantastic work! Thank for posting the photos and videos. I've been looking at that model with interest-- you really brought it to life!
I didn't think about the base plates for the stands, that is awesome! When I get mine done, I'll post.