There's a Guitar Center on the NE side of Columbus (just inside the I-270 loop) that would only be a few minutes off your route, assuming you're going from Cleveland to Columbus on I-71, and then taking 270 over to 70.
4661 Morse Centre Drive
Columbus, Ohio 43229
Phone: 614-436-2600
I live about 20 minutes off of 71, but won't be home until later tonight, otherwise you could borrow mine.