expert help needed (my first post)

its all there just switching to black. no one has put a 440 stick in an abody and sold it. or alteast i cant find any. thats why im stumped on what it could sell for if i did it. here’s pics of my interior, need headliner idk about dash. need everything black so doors and seats and ext.

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I know a family in Portland that has 3 big block cudas. Your not the first. We are talking about a 56 year old car after all.