Here's an idea: swap parts between a Gazelle kit and an Alouette III kit to make the former seem more primitive and the latter more sophisticated. The Alou gets skids, a partially shrouded engine and a fenestron tail, while the Gazelle gets wheels, an exposed engine and a conventional tail rotor. Since the basic fuselages and tails are about the same shape, this should work well and cause some serious head scratching.....