Some modern boats vary considerably from a traditional design but still claim the title "kayak", for instance in eliminating the cockpit by seating the paddler on top. Denman marine specializes in custom wooden boat building and repair. we are also the sole manufacturer of chesapeake light craft kits in australia. we utilize both. Designers, plans & kits a to m: 16′ mckenzie river driftboat plans and construction manual (from altair industries) ace marine ltd. (low cost naval architecture.