Have a long hard think about whitetail before going for it. Less cadets are leaving L3 and going straight to EZY as a result of the generation easyjet programme fulfilling most demands. Hold pools are filling up with people like my friends who have just done their AQC being told of a wait of up to a year for interviews unless you find your own work, throw in the sudden influx of ex monarch pilots and you get a very volatile picture. Who knows where you may find the industry in two years time, that's the leap into the dark that is whitetail.
As EC 2017 said, consider BA Cadet Programme, if you can afford it (its hardly different to EZY) then you're already past the first hurdle.
And flight training doesn't have to be this expensive for low income families, you are simply choosing the most expensive route there is, don't give up just because L3 want to charge the earth for the same blue book everyone gets.
Best of luck