Hello
Hi good evening I'd like to buy your storage for 15 dollars
It is 25 dollars. It is in good condition and rather sturdy.
For 20 dollars I would be willing to pay you cash and pick it up. 
I've got a couple bundles of paper I won't need anymore. I can throw those in if you pick it up and pay 25 dollars
I won't need the paper. How about 22? I'll still come pick it up today.