Tata, I cannot help you with your quest. But a bit of advise before you get ripped to shreds.
To get 500 hours on a Airbus/Boeing etc, it will take 18 months to go from zero to 500 at least.
What makes you think you will get a job?
There are no jobs at the moment even for people with experience, screw what eaglejet tell you, I should know I went there.
However that was a few years ago and I was one of the lucky ones.
Now, well there are people out there with the right to work in Europe with a lot more hours than 500 and no job.
Reality, don't waste your money, do some bush flying, FI work hell anything that keeps you flying but don't go and spend a fortune on a jet rating, it is not worth it at the moment.
Good luck
FC