Yes, the plug will work.
I don't know of any clubs really close to you but if you travel to Saginaw there is a club there. The Ford Model Boat Club has one race a year at Camp Dearborn in Milford and another that was recently run in Sumpter Township, SW of Detroit Metro Airport. The Oakland Wolverine MBC was racing at Thelma Spenser Park in Rochester Hills. Some of the races have been moved to the Thames MBC site in Canada this year.
All are great races to watch or race in. Unfortunately none of them have any classes yet for anything under .21 powered boats.