Especially Minn and Wisc, what you are hoping to do is what EVERY resident of the state hopes to do (at least it seems like it). Buy an RV and use it as an alternative to purchasing the expensive "cabin on the lake". That drives the price of finding a place to put it.....$1,000 a month is about average up here. Most spaces are rented for the entire summer.
Base camps - those not on a body of water, are pretty few and far between unless they are oriented toward the single night traveler.
You may be better off doing a week or two at a time at the state park - but get going on reservations now!
