Originally Posted by Ramdough
Would it be reasonable to buy a 5 or 8 cf model and build a super collar (one that hangs off on end) and the make a second box for more kegs? I would have to make a new lid that would cover both boxes or have the original lid cover the new box and half of the old one ( have to slide kegs under).
That's kinda hard to follow, but I think you are saying "buy a 5 cf freezer and build a 5 cf box to sit beside it, giving an apparent 10 cf of freezer space"
If that's what you mean: It is doable, but you have to be aware that the cooling system in the freezer is sized to handle a certain amount of heat load. If you increase the volume that the system has to cool, it has to work harder. There will be a point where you get too big and the cooling can't keep up.
You would also have to make some sort of active system to move the cold over to the other box.