Just a thought, have you considered a round table? I think they help add characher to any room.

You could check manf; like Stickley or get a custom width table top from a commercial table top co. like Wood Goods - 48" is pretty wide and may make handing over dishes a problem - if you are trying to fill the space won't a sideboard against the wall be more useful ? 36" wide is what I would recommend.

Or a square table - they can seat 8 or 12 quite comfortably