This is a interesting situation.
In another thread an guy is modifying his hemicar into a race car and it's it's his and he can do what he wants.
In this case it's paperwork owned by an individual. Using the reasoning contained in the other thread seems the anwser here is clear. Or, is this a case of the shoe being on the other foot, so another set of recommendations emerge?
fwiw, it's a shame deceit exists in the hobby and it's likely a good thing there are people like Barry watching out.