Dude do not get in the complication of mining right now as it is not profitable anymore...you can calculate in some mining output calculator sites and you would know yourself its not worth..rather buying bitcoin is simple and can give you much more profit rather than mining.
Seconded!
It'll take you much more than $6000 to earn your $6000 back by way of mining. It's not profitable any longer for the small time player. Bitcoin mining these days requires one to have the investment that rivals that of establishing a business to do so.