Hi Mike, here are a few interesting Biplanes.
The Coon Dog is an interesting Cayton design. I happen to have one sitting here to look at. Believe me, It looks a lot better in person than it does on paper. The one I'm looking at was built by Lynn Haslem, a clubmate, back in the mid to late 50's. He told me it was a good flying plane.
He's loaned it to me to take to VSC. I have permission to fly it if I want to while there. What I really want from his version of the design, is to document the changes he made. I really like the changes such as a radial cowl, wheel covers, and the coverings on the gear.
The Lynx is a bit similar, but has a lower, more streamlined appearance, compared to the Coon Dog. It's a British design, from the same time period.
The third plan set is for the "Hot Foot". It seems to have a good reputation. It looks like it would be.
The fourth plan set, is another Cayton design, called "The Bi-Liner" It looks neat, and would be a fun one, as well as an interesting plan to show up at the field with.
The last picture is of my attempt at a full fledged Biplane stunter. It's called "2 Bits Bipe". I'm currently getting ready to build a new set of wings to increase the wing area. It's a smooth flying design, with a nice groove in level flight, and turns great rounds. It came out with too heavy of a wing loading, and has a wing dip type of problem, when turning a tight square corner. I fear that it may be more than what you are looking for.
I've seen Don Hutchinsons biplane fly, and it can turn in a very good flight in the right hands. It's also probably more than you need, at this time.
It, like mine, is not a simple design. You are a good enough builder, so it's probably not going to be a problem.