attention 8 3/4" gurus
The bare housing by itself is worth that. Even at $500 you could make money parting it all out if it’s not totally frozen up.
A 68-70 B body 8 3/4 works decently under a Duster/Demon/Dart Sport. It’s what I have in mine. Just move the perches and you’re good to go. With factory offset wheels about the best you can do is a 225/60/15, I ran those for a bit on mine with 15x7’s with a 4.25” backspace. For wider tires on 15’s you’d probably need a custom backspace. But there are a ton of off the shelf 17’s and 18’s that have plenty of backspace to work with the 68-70 B rear.