I built something myself like the cleaning manifold you bought because the daisy chaining didn't work on my four tap jockey box (has coils). That has smaller and longer tubing than a kegerator and the daisy chaining didn't work. (Spike flow pump, 9.5 PSI). You get better pressure with the manifold as it is in parallel.
@Willy did you watch the video at Brewhardware? Bobby mentions adding another post to one end for five taps if desired. I've done that on CO2 manifolds before, added a line off the end. What you could do though is to add a stainless tee at the end plus two posts and then you would have six all at once. You'd need a nipple for the tee.
I built mine out of stainless steel barbed tees and short tubing runs. Three tees is all that is needed but I added an elbow on the end to turn the tubing up towards the last tap. I connect mine with growler attachments on my Intertap faucets. The Brewhardware one is simpler looking, more rigid and connects easier. I didn't consider using the ball lock keg posts, they're on the more expensive side but using the free flow ones is less expensive.