Yeah, was going to help my father do something similar at his place. His wife didn't want me coming out around Christmas time to help get it done because that was his vacation. Ended up not going and a few months later he fell and was hurt so he ended up having to pay someone. But like I said if a few of us all get together pretty much any job can be tackled even if a bunch of us are only partly useful.
As far as a supervisor I have my own clipboard and I am sure I can find a whistle somewhere.... Then again maybe a starter pistol to keep in line with the site. Get some of those really hot 22 blanks from the hardware store and.... Well maybe not someone is bound to call the cops.
