Depends on whether the buyer is a reliable regular or not as to how you approach this.
If an A1 regular put it out on a short Buy it Now and agree a start time so they can snap it up quickly.
If not so good buyer, or low profile, or new buyer, I would just put it out on a standard auction, in that way if they change

edit - Hi Shadeaux, dozing off now, catch up with you in the lounge around your breakfast time, g'night
