If Stapleford Flight Center in Essex is south enough for you, there is 2 FIC Instructors and FIC Examiners there, namely Keith Pogmore and Tony Glover.
Training and testing instructors is all they do, and quite well i can say.
And they are quite accomodating with students scheduling requirements.
Only drawback to their excellent reputation is the queue of candidates waiting to start training with them.
As for cost, respect of quotes is the norm.
Enjoy your training and good flight.