How much

[Louis]

So I am left with parts of my dead prochem pto. I have a heat exchanger for a water cooled engine. It's a beast what is it worth?
I also have a prochem pump out I'm thinking of selling to. I never used it because it would clog all the time. Bad design on the tank.
I have all kinds of hydraulic parts I need to sell too. Any idea where I should put them for sale?

Thank You