What's it worth? 1972 Plymouth Scamp

Dirty cars can be really good deals.

If the parts described are included I agree the value just went up.

I LOVE how people assume because there's 2 inches of dust on it, that it's a rusty pile of crap.

...and that's why they can be such good deals!

Most everyone sees the dirt and walks away, never noticing it has all those hot rod goodies installed and the body is nearly perfect.
And like you say if all the original parts are there too, the value should go up. The less parts you've got to hunt for, the cheaper it is to restore or fix up.