RE: Harrier proto.
Li Kai is a modeler in Taiwan. He designed the mechanism and structure for this Harrier. It took him a few years from concept to the phototype skeleton test flight. It was quite a successful test in 2006 winter. Near one year after, he even improved some design of exhaust and balance and successfully flew the phototype skeleton version 2. He contacted Skymaster to make a shell for his Harrier.
The last picture you see was the phototype shell and fuselage that Skymaster did for him. This one will be unable to vertically take off. It is going to be set up as a normal plane. He will be using this to find out the correct CG and to also make sure that the wing folio is correct. If everything goes smoothly he will have a second phototype with his design that will be doing vertical take off. Best wishes for Li Kai.