I am thinking about buying a ‘97 Pontiac Sunfire, but it already has 150,000 miles on it, and I don’t know if I should just save my money for something that has quite a few less, or go for it. Apparently the gasket was just changed and has been kept up to date on maintenance. Help?

I have a dent on my right side of my Pontiac Sunfire, the part that the wheel sits under, and I am trying to find how much it would cost to get that part.
I am not asking about how much to get it fixed. I can get it fixed myself. I just need the part.

I have a 1998 Pontiac Sunfire 4Door SE. It has 117,000 miles. I give it regular oil changes, and it was given a tune up last year. The only thing I had to replace on it was the alternator at 90,000 miles, and break pads and rotors. On occassion it’ll run funny (a little rough), but most of the time it purrs like a kitten. I’ve had the car for 3 years. I’m debating whether or not to trade the car in for a Honda since my experience with Honda’s is their made to run on high miles (i’ve had a honda before). How dependable is a Sunfire on high miles? Should I trade it in?