There is a gathering of Phantom fans to occur at Holloman AFB, NM in October of this year.
From the registration list so far (yes, I am attending) I see participants from the UK and Australia as well as America.
Besides QF-4 ops tours and flights, there will be tours of the F-22 and Tornado operations as well.
Pity it's in Alamogordo and not, say, Vegas or San Diego.