Why wear that kind of risk?? Buy puts, define your risks. I am not saying I disagree with your bearishness, but since you have defined a timeframe for your move, define your risk and buy ATM puts. GOORL are June $660 puts +/-$62.00
Here is a chart showing Goog. Come to your own conclusions. I say if it breaks south then there is no support until the 500s. The ramp up from October to December is what is known as a blow-off top.