I just bought a 5CF Holiday Freezer. Gets delivered Wed. Bought a 2 Tap tower after looking at about 40 pages on this thread, Im second guessing my choice in Faucet. Any feedback? I'm wondering if I should go with a collar? It would allow to expand on more tap, but don't know if I would expand or not. Definitely second guessing my plan/purchase.
I made a Keezer out of a Holiday 5 CF with a 3 tap tower...that said, I suggest you use the collar. A. you'll need to make a collar anyway to fit much of anything on the hump. B. it is a lot cheaper. C. it is less hassle. d. you can expand up to 4 taps (with the CO2 outside.)
A 10" collar would allow you to put 5 gal ball locks on the hump for sure, 8" is tight but would probably work.
For my build I just used a 4" collar which allows me to have a 10lb CO2 bottle and a 3 gal keg on the hump which is my preference, I like to make half batches of experimental brews or high grav. stuff. I only used the tower because space is really tight in my house and I have small kids, so the tower gets the taps up and back out of the way.