"A Hidell" could have been anybody.

Iacolonetti,
He wouldn't have been nearly that handsome.
Regardless, according to your theory, the bad guys had to not only wait until Oswald and all the other putative Hidells came to work that morning, but hope against hope that at least one of them would stay inside the building and not be seen by any other employees while some guy or gal from the evil, evil, evil CIA was doing the shooting.
LOL
-- MWT

PS Why do you naturally assume that evidence implicating Oswald, like the palm print found on the stock of the Carcano, was fabricated?
Do you agree with Trump that we live in an evil, evil, evil CIA and FBI-dominated "Deep State," and that Russia's intelligence services are to be preferred to our own?