8,9, and 10-speed road bike hubs are 130mm dropout spaced, but just to be sure measure the rear dropout spacing. Since you plan to replace all of the components, I'd recommend that you go with 10-speed. You need to decide up front if you want to go with Shimano or Campagnolo compatible components and then plan your wheels accordingly. It's best to start with a rear wheel, or at least a rear hub, that is compatible with the shifters, brand and speeds.
Al