Working from Houghton south have you tried, Wildlife Cabins (may need 2), D's Base Camp (I'm there the same time and 1 cabin would work for your group size), Krupp's, Yooper Lodge, Town Hall (Lenny's place in Greenland) Kip has a new place just listed in the Lodging thread below, and there is a Trailside place in Mass City that has a thread going as well.
Although I know what you meant, for at least a nanosecond I thought of Eben Junction, on M-94, about 12 miles east of US-41 and 19 miles west of M-28 (just south of Munising).Thanks I'll take a look I'm checking for a buddy they've stayed south in past and were looking for some options Houghton area possibly eben [sic] calumet
Where are they staying? Always nice to know what's available out there and how they found it.