Hello.
Hello could you tell if me there is anything wrong with this item?
There are no faults with this system. It is in excellent condition and is unlike any other home theater. 
When would I be able to pick it up if I bought it?
I could deliver it to you as soon as tomorrow if you would like. 
That would be perfect. I'd be able to offer you $315 for it right now. 
315 is a little bit too low. Could I get you to agree to 350 for it? it is worth 450, but I am willing to take off 100.