NB
This is quite simple really once you have been in this business for a little while. Never pay that type of cash upfront for anything. Any flying school worth training at will let you pay as you go or at least pay in instalments as you progress through the course.
There are a lot of good flying schools around but also a lot of dodgy one's, Once they have your 5 grand they will have you by the balls good and proper if you find out the place is not to your liking.
One final reason for not parting with the cash upfront is that diffrent schools suit diffrent people. Just because a few guys tell you that a particular school is great, it may not be right for you.
All the beat with your flying.
Cheers
Night LPA