OK so you really need about $1000. Let's use the current price of about $5 per BTC so you would need 200 BTC.
You are promising to pay back 300 BTC in two months. Let's assume for the momement in two months BTC just go up to $7.50 per BTC:
300 x $7.50 = $2,250.
And they could be higher by then, right?
From what I can tell you are not a miner so you would have to buy them on the open market, right?
Edit: best course of action is to get one of your friends or family to loan you the $1000. They may do if for free or would be happy to get even 10% APR on their money, right?
I have about 2Ghash :/ but thats not alot