"Impersonators are expensive.  Having them actually around the fortress isn't cheap, but it's a lot less expensive than that."

"Other option that occurs to me is sending them to Egorian to keep up appearances about the fake Project Lawful and free up an impersonator there," and more importantly, get them out of Maillol's personal hair, "but you'd need to decide what alter-Cheliax would be doing with them in Egorian.  Alter-Cheliax doesn't have to worry about somebody using Detect Thoughts on the girls, since that spell doesn't exist there, I think?  Which means they have wider options than we have in reality."

"Impersonators are expensive.  Keeping the failures around the fortress isn't cheap, but it's a lot less expensive than that."

"Other option that occurs to me is sending them to Egorian to keep up appearances about the fake Project Lawful and free up an impersonator there," and more importantly, get them out of Maillol's personal hair, "but you'd need to decide what alter-Cheliax would be doing with them in Egorian.  Alter-Cheliax doesn't have to worry about somebody using Detect Thoughts on the girls, since that spell doesn't exist there, I think?  Which means they have wider options than we have in reality."