Epicurus specifically did not want the members of the Garden's assets to be held in common
That's very clear from the texts and a very important point since a lot of people incorporate "communism" with the lifestyle they think Epicurus was associated with. Epicurus would have had before him the example from Plato of the community of women and children and the like, and I would expect he reacted against Platonic statist/communist ideals as he did to other Platonic ideals.
It seems like Epicurus was sufficiently well-off financially to afford multiple slaves and multiple pieces of real estate, so it sounds like they were getting contributions / making money from teaching and writing in addition to whatever they brought to the table from their own financial backgrounds, so that's definitely a consideration for modern-day efforts. Resources have to come from somewhere and that's very tricky to figure out.