You do have a serious issue with the rear panel and trunk areas. Seen worse repaired.
Check the bottom corners of the rear window, under the trim. Also a common rust area.
On the wheels, notice the polished center , '65 only, and how far out the center is on the rim. Also the outer edge of the centers in '65 and '66 are a little wider then latter years.
As I mentioned in my first post, definitely '65 wheels.
Loren