Advise: Going to look at a scamp

hey folks, its been a couple years since I sold my duster, and I really miss having a weekend cruiser, or something to take to car shows on the weekends. I've been looking since the fall for another A body. This scamp came up for sale around October, and I put it off, well it just recently came up for sale again by the same owner, so I'm taking it as a sign that I need to at least go look at it. I've not had great luck with traveling to look at cars, it seems very few people are honest about what they have.

The car is a 1974 Scamp,
1978 360 .060 over (6000 miles on rebuild)
Saginaw 4 speed
3.91 sure grip moser axles
new door seals, interior (I'm putting the seats back to factory), brake booster, gear box,
Working AC and Heat, all gauges work as well
From the pics the car looks very well maintained. The guy that owns it is older, he said he's getting rid of it to buy a camper so him and his wife can travel.

My questions are, what were the common rust issues with this car? Anything specific to the scamp I need to look for specifically? Providing the car looks as it's pictured with no issues, what would you assess the value?

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