Thank you @kazko. It is nice to find an online community that is helpful as opposed to hateful (I recently stopped using certain big social media platforms because it seems like so many users send make fun of each other's questions).
There is no concern that there will be any babies. I have:
Someone contacted me needed to rehome a family of 4 ASAP, so I now also have:
The 2 neutered males get along fine, at least for now. If there starts to be a problem, I will separate them. Everyone is in the same large cage except for the 2 youngest female joeys, who seem crabby and scared.
Since the gliders who have been given the live meal worms are very healthy looking, I think I'll provide that for them. They won't eat the freeze dried mealies.
Any "farming" tips are appreciated. I assume that I will have to keep them in the house, although I which I could put them in the garage. I don't want to attract cockroaches.