Just buy it directly, there have been studies done...it's a waste of money. Buy Bitcoin, with the money you have for mining. Spread out your buys at different prices, eventually you will catch the bottom. Looking back last year when I got added to a mining project, the guy who funeded it spent $25k on mining equipment, sure we have made profits, but nearly as much if we had just bought the Bitcoin directly. Unless you can scale at a massive size, just buy it.