As it is a residential course you are looking at, have you thought of Glasgow
www.gcns.ac.uk/aviation. Very popular place at the moments, two classes running at the moment and both full. Our class just sat Perf, Planning, R-Nav and insts in April and the class average for all tests was in high 90's.
Good thing about Glasgow is its cheap, modern halls of residence, slap bang in the middle of Glasgow a very modern bustling big city if that's what turns you on.