Yup! it's as simple as getting a trial token and then spinning up an enterprise metabase container (or JAR). Don't worry about the "enteprise" name of the container or JAR, it's just a descriptive name of the features.
@will.b, please contact sales as the way we sell the licenses might change from time to time. Right now, for Pro self hosted, we charge by the sum of all the users in all the instances you have.