if you have the money, go for the hunter.
North Weald may be easy to get to....but you have to bimble about to the E or NE for a while before you can get some decent altitude.
CAP 632 used to be the relevant CAA bible on operating ex military planes on permits.
and this link gives an insight into CAA thinking
British CAA changes regulation of ex-military aircraft | Helihub - the Helicopter Industry Data Source
of course - flights are permitted for the purpose of familiarisation if you are considering the purchase of a share in the aircraft.....