yes , i know its terrible , but what to if i got scammed by some person for $1000
No other option, while BFL doesn't ship to pakistan
Your other option is to just buy bitcoins with whatever you can afford over time.
You've already missed the window of opportunity. If you bought a miner right now, you would just be paying money for a device that will give you newer coins than the ones you spent (or could have spent) on it.
Mining isn't the only way to profit. Buy $50 worth of coins a month, or whatever amount, and just wait. You might make a return, you might not, but your chances are far better than buying a miner now.