I have had reservations at the Country Inn for a while. We have stayed there before, and it was a nice motel. We have also stayed at the Holiday Inn in Holland, and I would not stay there again. There are some hotels in Grand Haven with not-too-bad rates (Best Western Beacon Inn), but you have to reserve Friday & Saturday night (can't stay just one night).

Michigan City has a number of motels - Comfort, Holiday Inn and a number of others (and one at the casino). On a Sunday night I would think you would be OK.

FWIW, you could fly Delta from SLC to SBN and return for $371, a little more than Midway, but a whole lt less headache and traffic! Hope you can work it out.

Dave