Hi, I'm in the middle of a kegerator build. I won't be getting my faucets and shanks for at least 1 week. But I wanted to get the holes drilled before they get here. I don't want them in the way of each other but still want them close so I can use one small drip tray. Only going to have 3 taps. One hole came drilled in the fridge already for a faucet when I got it. What distance should I space them? Thanks.