'74 and '77 going for scrap

my nephew scraps cars and has 2 xj6’s that he will let me strip. I am pulling anything that I can use on my xjs but not sure what else is worth pulling off. any advice on whats worth saving or rare? the '74 is rusted and needed carbs when parked, red interior is surprisingly nice (not show car nice) trans is good. haven’t seen '77 but was told it runs and drives but covered in surface rust. must be stripped in next few days.

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Where on the planet are they?

north of Pittsburgh, pa.