I would think that amount of money is too high. There are a LOT of Foresters and Outbacks running around in the Upper Peninsula of Michigan...you might try a Google search for that region...(Subaru, sale, Michigan), or something similar, just to see what's available. I know that Subies are running around with hi-milage, but I wouldn't consider it a given that every Subaru is going to last that long, especially in harsh climates and conditions. I would try for a lower mileage vehicle at a higher price...might be cheaper in the long run.
Good luck.