I used to work at Mojave Airport - Cathy Hansen puts together a lot of stuff for that museum site. her and her husband own several warbirds and helicopters, I used to work for him part time.
That aircraft was going to race in one of the unlimited air races once held in Mohave. Could you picture that thing going around race pylons with P-51s, Corsairs, and Sea Furies?!?! (of course without the guy on top)