WWII Warbirds are notoriously difficult to fly -- after all they were designed to be high-performace fighters. The Zero like most warbirds is a low-wing tail-dragger. Most people here will tell you that a WWI warbird should not be a first, second, or even third plane but rather that goal you shoot for down the road. I think I built every single one of the Guillow's WWI planes (and I've built their Fokker Triplane three times) and they really are designed for very light powered flight. But I wouldn't consider one for a gas RC conversion. Maybe electric would be OK, though.

But remember if you build it for electric you HAVE to build it LIGHT. You won't be able to weight it down with the kind of scale detail you might be used to in plastic models. There are some people doing some really really neat scale free flight models but that's a whole other art form.