Originally Posted by jefnvk

Offer him half of what retail value would be with those components, if he doesn't take it say thanks but no and be ready to walk out the door. My guess is he'll come back with something in a hurry.

Seriously, I dislike people like this on CL, in a shop even more. You are running a business in America (or some other Western nation, I presume), not a bazaar in Northern Africa. If someone has cash and wants to buy, name a price.