Southeast Ohio has some fantastic riding. Just hit all the 3-digit state routes in SE Ohio for a start. There are also some good streches on the 2-digit route numbers too. You might base your stay in Marietta since it is on the interstate 77 and has everything you might want for amenities.
I can give you specific route ideas if you want to PM me, but the ideas above will get you planning. If you have extra time, dip into WV too. You'll love it all!