I think that theey have a basic code for ellen and the others… and they use the same goo to “form” whichever model that is reserected.
I don’t think that therere were 1000 spare Ellens. I think that the ellen program entered the hub… processed and was injected into a goo bath that formed an ellen body.
The threes that were already walking around were boxed. We shouldn’t confuse this with there being 1000 souless lifeless 3 bodys in a warehoue.