MK Airlines might be able to point you in the right direction. MK are based in the UK in Manston and operate DC-8s. However they themselves operate under a Ghana AOC, but they might know where you could go that caters for JAA licences.
Look at
www.mkairlines.com
I also just remembered Cygnus Air in Spain. They operate two 'eights' and they might be your best source for info since they will be running to the JAA scheme of things.
Their parent company site is
www.gestair.es
Hope this might be of some use.