RX7 looks amazing, been up for awhile.
RE the paint, it's plausible that it's had a restoration over in Japan. Hard to say without looking up that close. You will get overspray from the factory but does look excessive (nuts and bolts are coated in paint when normally these are fitted post paint).
Honestly, if you're serious about these cars and intend to use them now and again then buying on condition is key, not originality. As long as the paint is to a good standard, who cares. The shell is mint and rot free. Also, JDM paint is shocking anyway lol