I wonder how many people got scammed who spelled silicon incorrectly. I think the company should of bought the domains with wrong spelling years ago to prevent this from happening. Because if you are not careful the last 3 seem very legit for the untrained eye.

Back to OP, I think your power costs are way too high. If ETH keeps dipping and difficulty keeps going up your ROI won't be 60 days. Only way I see this paying off is if you get the ASIC early and ETH goes to like $5000 in the near future while the difficulty doesn't climb exponentially. I would just invest directly in some coins.