Less if you are willing to do a bit of taxi work in the evenings/weekends...
And then you'll spend 2 twelve hour shifts making £150 after expenses if you're lucky. Take it from someone who knows and stick with the manual labour. It pays far better for far less hours.
Other than that I'm with WWW et al on this one. If you haven't got it then go out and earn it. Age may not be on your side by the time you've done that, but if nothing else you'll have enough money to enjoy your PPL privileges and fly.
Bets of luck to all