great news,
by the looks of it , the jets that are covered seems to be FC-1, and the far right jet has smth sticking out of cover, could it be IFR on FC-1?
In the last pic, the bubble canopy looks great too!!
No, these are surely older J-7 as You can notice by the upwards-hinged pitot, the airbrake below the fuselage, etc.
Deino