I've been thinking about doing this with my coffin box. I have 14 taps on the coffin box, and I have always just been ok with the foaming.
For my system, it would be about chilling the shanks and faucets, which would really require me to wrap the shanks with copper tubing and pump the chilled water through the copper. This has prevented me from doing it, though I'm still thinking about other ways to chill the shanks/faucets.
In the past, I tried using a bilge fan to bring in cooler air into the coffin box, but that brought too much moisture back in to the walk-in cooler, and it caused the window AC unit to freeze up that I use to chill, so I had to take that out.