Someone with a South London accent to read my book

It's called Kin and is a memoir of a friend. 78,000 words, written in the first person. There is quite a lot of dialogue. To begin with he is a 9 year old white working class boy from South London in the Fifties. He never loses his London accent. The story takes him through his teens, twenties and so-on to his fifties. He is impulsive, enthusiastic and funny. In parallel is the story of his brother, two years older, who is put-upon, cautious and increasingly depressed. The challenge for you is to make a difference between these two characters. As I'm funding this myself, my budget is limited so I am happy to do all editing. I am a former BBC radio producer and presenter so that's pretty straightforward for me (I would have read it myself but I sound too posh...). I have not specified a budget as I'm new to this, so please let me know what you would expect. Thanks for looking Nick