"Models G thru P "?
The F-8 only had -A, -B, -C, -D, -E, -F, -G, -H, -J, -K, -L, -M (designated but not used), and -N models.
The RF-8G were remanufactured RF-8As.
F-8Hs were remanufactured F-8Ds.
F-8Js were remanufactured F-8Es.
F-8Ks were remanufactured F-8Cs.
F-8Ls were remanufactured F-8Bs.
F-8Ms were to be remanufactured F-8As, but not enough were still available, and the program was cancelled.
These all got new fire control systems, more powerful engines, and underwing pylons plumbed for drop tanks.
DF-8Fs were F-8As used as drone controllers.
Nice site with airframe serial numbers and detailed info:
Vought F8U/F-8 Crusader