As has already been stated, don't get water cooling. The FE cards ship with a HORRIBLE fan curve on it. If they're going to put a blower cooler on it, IMO they should ship with a heavier curve, but I think it doesn't go above 50% right out of the box. It'll be noisier, but you can easily just increase the fan curve instead of wasting more money on a card that shouldn't end up being watercooled. The other issue (if you really don't want to use a blower cooler) is to go get an aftermarket air cooler and install that. Much less money. Don't waste more money than you have to on a mid range card. If it was a 1070/1080 then I'd understand, but the money that you put towards water cooling a 1060 could easily have been better spent on a 1070, as has already been stated.
Tldr
Don't water cool it. Give it a more aggressive fan curve, or get an aftermarket air cooler. Don't waste your money.