Thanks all.
I think he may go for the Bristol route as it seems to be cheaper. I hope they don't get booked up too far in advance. He has been using the likes of club66pro.co.uk. He has currently passed a few modules.
How much knowledge do you need beforehand? He is specifically looking at modules 3,4,5 & 10 at the moment. He has been working on aircrafts for about 12 years.