The Corsair of Kirk Mullinix is outstanding, both in appearance and in performance. Lucky for many of uys in the in the Soutwest, Kirk does not get to practice very much. He is a good flyer. (He place 5th at the Nats several years ago.)
As has been reported, he does not have plans for the Corsair he built, nor do I believe he intends to produce any. The fuselage was done with molded shells. The bellcrank was in the inboard wing with a transfer pushrod past the reverse gull wing shape of the wing. He is a master machinist and machined his own universal joints for the full span flaps which means that the flaps work across the span of that reverse gull wing shape. The universal joints he used are flawless. There is absolutely no "slop" in the flap control system. This is not a project for the faint hearted. Nor would it be a very practical airplane to be made available as a kit unless there would be some major modifications to his bellcrank and flap arrangements. Then, it would not be the magnificent Corsair that is Kirk's.
Also, as has been reported in this thread, Jack Sheeks had a full bodied Corsair in the November 1978 issue of Flying Models. It has I-Beam construction. Flaps were employed only on the inboard sections of the reverse gull wing.
Jack Sheeks also did a Profile Corsair in the March 73 issue of Model Builder magazine. This is a .40 size, "conventinal" cnstruction profile. Flaps were installed only on the inboard sections of the wing.
I am not aware of any other published designs for a Corsair stunter.
Keith