unfortunately 71 and up B bodies don't bring big $$$$.

in my opinion. non air grabber, bench seat, no original motor and trans. it would be worth worth mid 20's when done to high driver quality standards.

low resale values could be considered good or bad , depending on how you look at it.

the good. you can build it how you want without much worry about "if I modify it will it hurt it's value". original motor and trans wouldn't be worth more than the 440 4 speed you are getting to install. a lot of people would prefer it with the 440 4 speed than the original 400 3 speed.

the bad. a quality pro paint job might get you upside down in value.