It's a question lots of people ask, and there is no correct answer, just use the search and go see
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It's a gamble and one you have to decide on for yourself because either way you are talking very serious money and that 7k will barely scratch the surface. Minimum you're looking at is a £50k and 18 month investment or more and then you'll need to come up with the cost of a type rating £25k.
Are you absolutely sure you want to do this? If so it's going to be a real fight, particularly given the precarious nature of the economy. You absolutely have to love it.