Zero is being built on my K-9's chassis and will use all of his electronics. I'll be controlling him with the Shadow system built mainly for Astromechs. It's been adapted for K-9 and it should be easy to swap it over for Zero as well. The main body of Zero is going to be a PVC skeleton with a thermoformable plastic to mimic "ghostly ectoplasm." The plastic is the same that is used in modern car doors as water shields. A late friend found it and tried using it for cosplay armor. We figured out it might work well for Zero.
Here's a link to the control system's files base configuration: https://github.com/theFPVgeek/SHADOW