We did the trip a few years ago
We stayed at
KOA Thunder Bay
Sunset Shores Batchewana Bay
Wawa RV Wawa
And wish would have stayed at the Koa in Sault Ste. Marie
Plan to stay in Sault Ste. Marie a couple of days - highlight of our trip was the Agawa Canyon Tour Train leaves 8 am returns 6 Pm - we got free breakfast on the train and they have food available in the canyon. With the favorable conversion rates the $112 fare is only about $ 86 US
We also liked the The Canadian Bushplane museum in town
Make sure you add Canada to your cell phone plan as the roaming fees will kill you if you do not - either that or turn them off for a week ( I could not do that)
This trip is 934 miles in Canada - a week is not enough try to see if you can add more days
2012 Winnebago Journey 36M Cummins 360
2014 Jeep Cherokee
492 Campgrounds,107K miles driven in our Winnebago motor homes and 2360 nights camping since we retired in July 2009, 41 National Parks