RE: McCulloch 32cc on a 85" 17lb Extra 330?
it might change some opinions, but I did the math earlier today and give the plane a 14.5 pound RTF weight, unless all of the radio gear and fuel tank and stuff is more than 2 pounds... the bare plane with wings, tail, landing gear and cowl added to the engine that isn't done with it's diet all adds up to 12.5 pounds (including a bit to account for prop and adapter)
things it still needs to be ready to fly is a complete radio system, fuel tank, linkages, tires (main and tail, going with 4-6" pnumatic), little bit of paint on the cowl, and monocote to cover the bottom of the plane. we added up all of the components of a radio system and came up with just less than a pound, and figure about a pound for the rest, so that puts it at about 14.5 pounds