becoming a sniffer dog handler?

hi

currently living in london, have recently got a black labrador pup 11weeks now, he is fantastic and always sniffing things out, i have for a long time wanted to be a dog handler but didnt have the finances or in a position to have dog, well now i do, i am currently an sia head door supervisor (3years now) and i love the job but would love to work as a "sniffer dog handler", (i didnt get my pup to do the course, got him for company and to give him a good home and seems like a good idea to see if we can make a living at somthing we would both enjoy doing) things im struggling to find out.

:places in london or just outside to do the training

:prices for courses

:will they let me use my dog for the course and to be partnered up with or will i have to use and take on another dog that they have breed?

:advise from previsous/present sniffer dog handlers please?

i have tried searching on line but not getting very far, allot of companys who supply clients with sniffer dog handlers but thats a step ahead.

hope some one on here can help