Possible solution for sources of volunteers:
1. I have written a grant proposal to use a team of Americorps-NCCC volunteers for the past 4 years at the Chesapeake Regional. Here is the wonderful team from this past year:
http://www.chiefdelphi.com/media/photos/31092
It appears that Michigan has a fairly active Americorps program. I would suggest that the Michigan planning structure look into this program to see if a team could be used going from event to event. Housing would need to be found for the team, unless they are within about 50 miles of their base.
http://www.americorps.gov/about/role...files_state=MI
2. Connect with the Michigan Volunteer Centers.
http://www.michigan.gov/mcsc/0,1607,...115---,00.html