You don't need much to-be-honest. Most snails in the hobby cannot take high temps. though, so you want to make sure you can keep a tank below 79F. IME, getting higher than that, especially for 2 - 3 days or more will cause die-off. Most importantly, when a few die off, it can cause a chain reaction. Dead snails really foul water badly. Make sure to pull and dead snails immediately!
So essentially you want a basic tank, powerhead, even an HOB filter with carbon (we all have some of these laying around right?) regular small water changes and a food source. I even experimented with boosting algal growth in my grow-out tank. BUT before you do anything, make sure you know what you will do with the babies. Once a good equilibrium is reached, some snaila will breed prolifically, and you will need to do something with the babies or the tank will crash.
Don't forget that snails are NOT a magic bullet. They poo just like anything else, so keeping the tank bottom clean will go a long way to ensuring good water quality.