Hello!
Hi there,  Isee you have a storage container I am interested in.
Yes. I'd be willing to sell it to you today if you want!
I am not sure if it has anything wrong with it, or how old.  But would you consider $17?
It's in mint condition, absolutely beautiful! I'd be willing to do $20 for it. I'll even drop it off to you. 
I appreciate the offer. I will pick it up for you.  Just let me know the area. $17 is cash today!