CF,
PhilH has a good point about practicing parking at BHS.
The other thing you should plan is to camp at least the first night in your driveway. That way you can discover how things work (or don't) when it is not critical.
We have a Belleville zip, but are in New Boston. I can maybe help as I do know the local area. We seldom "camp" less than 4 hours away, but I keep tabs on what is local so I can tell others.
In the above, at least two were missed. There is a camping area at the fairground that is largely FHU, but it is an open parking area. Then there is the campground at Lower Huron that is 0HU, and kind of pricey for that. There are lots of others withing an hours drive.
Matt