You may want to ease into the boondocking concept slowly with the DW, keeping the lack of amenities to a minimum....., initially.
The Lake Michigan Recreation Area (Federal rustic campground) is a great place on the shores of Lake Michigan, great for biking, and plenty of hiking trails (Nordhouse Dunes Trails). There isn't any electric but there are a couple water spigots in each of the campground loops. The road/site pads are asphalt and RV friendly.
This rustic campground is located between Ludington and Manistee (8 miles east of US-31), nice campground deep in the Manistee National Forest. There are also remote campsites within the Manistee forest area (access vis forest roads) outside the area of campground loops.
Call ahead to confirm when they close things down for the winter (normally late October). I camped there a couple weeks ago.
Facility Details - LAKE MICHIGAN AT MANISTEE, MI - Recreation.gov
Here are a couple more of my favorite rustic Federal CG's in Lower Michigan:
Facility Details - PETERSON BRIDGE, MI - Recreation.gov
Facility Details - MONUMENT CAMPGROUND, MI - Recreation.gov
Also, click on the JOF "Community" tab, then click on "Social Groups", and look for "Michigan Campers and Campgrounds"........ more info there.