Drum enclosures are big. This isn’t grade school show and tell where you make something in your home and then just put it in your back pack. So take a lesson from these guys and notice that if you are going to build a drum shield, you should probably build it in place.
Of coures it brings up the obvious question. What if these guys are geniuses who have realized having a drummer on stage can be quite distracting from the band leaders antics? If you get some good mics and be sure and leave him a bowl of water, you could build the drummer a nice cage backstage and get the best of both worlds.
“How are we going to move this?”