Should I buy a 2010 Chevrolet Equinox that has 196,000 miles with a clean title for 3,300
That is much too high of a price for a Chevrolet Equinox because they don't last too far over 100,000 miles let alone 200,000 miles. Walk away from that price it will leave you high and dry.
If it has that 2.4L EcoTec engine, turn around and run before it jumps time and you end up stuck with a blown engine.