As he's yet to sign a pro deal he'll be one of the most sought after kids in the country at the moment. He's got a reputation that's sky high so figures of 20k -30k to keep him at City might not be far off the mark.There's every chance other clubs may be trying to tempt him away with similar offers.
Very much so, with the involvement of agents etc. The numbers will take care of themselves in a football sense. Hope he is one of a few from current crop that makes the 1st team squad in the future.