And I might even recommend looking in different parts of the country, especially if you're looking for an older vehicle. I grew up in Iowa and rust was always an issue, as I'm sure is the case in MN. But here in the high desert of Idaho, older cars are almost always rust free. I have a 2000 Durango that's lived most of its life here in Boise (where we don't get much snow/ice) and it's often warm enough to wash undercarriages regularly. Underneath, looks like a 2 or 3 year old car from the Midwest. It's not unusual to see 30 year old cars here with zero rust.
With technology where it is (smartphone video, high quality pics), I might consider shopping outside your locale and considering shipping/freight an investment in a better vehicle. I know there are plenty of GCs here in Boise with the 4.0 that would go in the $5k to $7k range. Food for thought.