I didn't get a quote for just the recon box, as I have a mate that has done that before and told he had a warranty with the new box, but when it went wrong and he tried to do something about it he was told "It was put in the car by someone else, so it's nothing to do with us, they must have caused the damage!".
I should imagine it would be quite a bit cheaper for just the recon unit, as there will be a few hours in putting in a gearbox!