Steampunk Droid Drink Tray Reconfigure

I have the A&A drink tray with both sets of shoulder stands. I've taken it apart and added some brass and copper tubing to extend it and give it a different look. I'm using the spare set of shoulder stands to attach to the back of the legs pointing backward. These will cradle a large glowing "power source" cylindrical thingamajig that I'm making up from green tubes and brass lamp bases. The Ghostbuster proton packs that we will wear will have similar, smaller green power sources. The tray is on R2-G4 in the pics, with the R5 head before the steampunking started.