Don't expect to find a whole lot in terms of entertainment or fine dining while in Milledgeville, it's a pretty small town. They do have a pizza place, a couple of bars, and a Casey's (which is really all you need). Sterling will be the closest "big" city. If you need food like supplies, make sure you stop at the Krogers on Route 40 as you are heading north out of town. If you need any last minute bike supplies, Mead's Bike Shop is also on Route 40 in downtown Sterling. But they do close at 3:00 on Saturdays, so you may be out of luck if you come into town in the evening.
The farmstead is about 3 miles north of route 40 on Otter Creek Rd. Be sure to look carefully for this turn as you head out of town, it comes up on you quickly. If you have any specific questions regarding camping out the night before, feel free to contact me.