I have a 1972 Plymouth Scamp that's been sitting for 25+ years, how much is it worth?

I like your thought of your Grandpa looking down on you today while you were cleaning up one of his cars!

He looked down on you ensuring it was a relatively straight forward day. He didn’t let you off totally easy since it’s still a mystery why it’s missing most of the front trim for the car!
Haha, ya he did give me a small challenge. I searched his shop, garage, and shed and could not find the thing. The grill is in the back seat, but I could not find that damn bumper.