I acquired a chest freezer that I'm converting onto a kegerator. I can fit 6 kegs on the floor. Plan to have a 3 tap set up to start with hopes of 4 in future. I can fit my co2 tank & regulator on the hump with a 4" collar. With an 8" collar I would have room for 2 more kegs on the hump. I'm kind of on the fence about which way to go. 8" seems pretty big for a collar on this size freezer. But it would be nice to have the extra space. Anyone see any reason not to use an 8" collar?