You may want to consider more specific requirements, which will help us help you decide. Remember that *most* rowing/pulling designs will be narrow aft, whereas sailing and outboard-capable designs have more width aft.
How many rowers do you expect at once? Any length limitations for your shop? Will it live on a trailer, or spend many months in the water at a time? Do you want the rig to fit in the boat, or will you row with the mast up? Is sailing or rowing the primary function of the boat? Are you going for "pretty and showy wooden boat", or will it be minimalistic design and workboat finish?
I converted a pulling boat to sail, and was amazed at how stable it is compared to my expectations -- but it is FAR less stable (and roomy) than a pure sailboat of the same length, and can't take an outboard at all.
Many designs will meet all three requirements, but if you've got a focus on the primary means of propulsion, that may determine what type of boat you give more serious consideration to building.
"The enemies of reason have a certain blind look."
Doctor Jacquin to Lieutenant D'Hubert, in Ridley Scott's first major film _The Duellists_.