Don't have a clue as to their current requirements but you could try Heavylift at Stansted. They operate A300 freighters and they're starting a pax op as well
+44 1279 680611 Capt Brian Webb, Director of Flight Operations is a good place to start.
Also Air Scandic at Manchester. Their Ops are +44161 489 6431. Again, don't know how they are fixed.
Best wishes to you all
Doc C.