Just got in a complete kegerator. Any comments on what type/size drill bit to go through fridge door?? Any tips -- go from out to in or vice versa on drilling?? Nervous to mess up new fridge for this. Also, saw some comments on board about appropriate foot length of out hose to prevent foam etc -- why would almost every dealer sell kits with 5 or 6 feet hose if this is a problem?? Please help understand and ease my worries about how difficult this kegging thing I am in is> thanks, doc