Here is what I did - a “walkup” bar. When I finished my basement last year, I left about a foot between the back bar wall and the concrete. I have four faucets, an 18" dishwasher, a small beverage/wine fridge, a small microwave for popcorn, and a sink.
The faucet on the right is either root beer or carbonated fruit juice (like IZZE, if you have that in your area). The faucet on the left is usually my stout/nitro faucet, but I don’t have anything on nitro right now, so I’m just running a 3rd CO2 faucet (all Shirrons, got them before the law suit patent nonsense). There is a drain on the drip tray, by the way, which turns out to be pretty nice to have.
On the other side of the door (storage room) is my chest freezer/keg fridge. There is about a 3.5’ run from the back of the faucets to the freezer, which I wrapped in insulation. The first pour might have a tiny bit of foam, but all good after that. In other words, it’s short enough I don’t have to worry about cooling my beer lines.
Three regulators for the CO2 - one at 10psi (with a manifold for up to 3 kegs on it), one at 13-15psi (also with a manifold with 3) for my wheats or Belgians, one at 20-25psi for my soda. The nitro regulator is outside.