In similar systems that I have constructed in the past, I have used a number of methods for passing actors in different states.
Pass a fully instantiated actor via a transfer process. Nothing changes for the actor, beyond reassigning parentage.
Pass a cleaned actor via a similar process to the bench and add process. This was used to allow an actor to be reduced to a resting state as it were. In most cases you could think of it as a resurrection method that allowed discarded actors to be reinstated with only specified base properties in place.
Anyway, I don't use Lua at all, but I like these type of actor messaging models. I look forward to reading through the rest of your documentation once it's done.
O.
