If you want to get out in the woods go to Agimac River Outfitters on Indian Lake. They have cabins and a campground. Indian Lake is a good lake for walleyes and has lake trout. There are 10 other drive to lakes in the area with decent ramps that are remote and lightly used. You can camp on most of these lakes with the MNR permits. I've been making trips to this area for 30 plus years and haven't lost interest. I've stayed at the resort several times, but most of the time we camp on some of the drive to lakes. I've done solo trips to this area a few times.
If you are going to be solo it might be a good idea to stay at the resort in order to leave a days itinerary Some of these lake only get fished once or twice a week so if something goes wrong at least someone might come looking for you.