Intertaps rock, I dont know why any others exist. If you have the flow control ones, you don't even have to worry about balance that much.
If your taps are through the collar, you not only eliminate having to move it away from the wall to open. You also don't have to have a fan to cool the tower, and possibly more elaborate dehumidifier to deal with larger, inaccessible area.
As for the old fridge: If you have any use for a spare fridge, just fill the holes with expanding foam, shave it flush and seal up with tape. Otherwise, yeah, not an easy sale.