Doran's right on. If you use Google Maps, you can see the State Park covers both sides of Honey Creek. The campgrounds are on the peninsula, RV sites, cottages and main lodge on the north of Honey Creek. They are separate by about 4 miles of asphalt, but less than 90 seconds by boat. I'm assuming most of you are bringing the boats? The lodge side has the slips, the restaurant, the water park, etc.
I'll drive out either tomorrow or this weekend and see if I can't get some pictures to load up on here. For now, I'm thinking the giant fire-pit ring would make a good meeting place. The larger ramp is at the campground side, but the beach and the slips are within site of the fire-pit.
Another FYI. The Crappie Masters National Qualifier is also on Rathbun that weekend. It is only a 1-day tournament here. I've talked with the President of the Crappie Masters Tournament and neither of anticipate any problem with sharing the lake. He expects about 70 boats, in teams of two. They'll be fishing from 6 am 'til 2:30. As a fisherman myself, I anticipate they'll be seeking water in the 7-15 foot depth range. They have to be in line for weigh-in by 3:30. Our boat parade is the only organized event for all of us on the water during that time, our beach party/public viewing for favorite boat awards is 12-3. This is the reason for limited slips discounts at Honey Creek - they are listed on the Crappie Masters site as the "host lodging," BUT, weigh-in and hq for the Crappie Masters event is at the marina in Buck Creek. Buck Creek is separated from the main lake by a narrow, no wake channel.