Being able to use barrels and kegs I would love, particularly if they can each only hold a single item, so that when we perform a Give All, it places only the corresponding item into them.
Tavern Counters though…
From having used tavern counters with storage before (Savage Steel), I’d strongly recommend against it. Having storage in a tall placeable that you want to place other decor atop or Thralls/Thespians behind means that you will frequently find yourself accessing the wrong inventory when standing in front near it. That was a huge source of frustration for me in the public “Sin Hole” tavern I made on our Exiled Lands server. I eventually went back to using the base game tavern pieces as a result simply to have ones where storage interaction was always popping up.