A few months ago I talked to a woman who was trying to sell one of these https://advancedgourmet.com/ott-freezer-masterchef/
she used it for cooking pate a choux, so definitely can handle thick ice cream, wanted $19k after two years of use, i don’t recall which size it was. She was really enthusiastic about it, loved being able to push a few buttons and have consistent product.
Or how about a steam-jacketed kettle?