No, the idea was the plane was unperked until you chose the perked loadout, then the perk price was applied in the hangar.
The idea hasn't been rolled out because it is more complex than we know, is my guess. The C-hog was initially slated to be an optional loadout on an existing F4U (unperked) airframe, and it was NOT updated when the other F4Us were, but due to a certain notrious and constant bug exploiter flying around in invulnerable old-model C-hogs, they updated the model to remove this bug because of certain folks that abused it. As far as I know, the C-hog will still eventually end up as just a perked loadout option on an unperked ride.