How long has it been since you ran or saw someone run Pritchett's with an FJC? The only reason I ask is, when we ran Pritchett's last year it had gotten so tore up and dug out from the Jeep Safari and the big buggies running it when muddy, that in places people had stacked rocks 3' to 4' high to get through some of the obstacles that dont have bypasses. Unless you have a really built long wheelbase rig the rockpile is almost impossible unless you want to risk a backflip or winch up it.
A well built FJC may be able to make it but you may be risking some body damage.
Randy Rosetta KDØKWX TLCA #19351 69 FJ40 "Meanie" & 1970 Boss 302 Mustang