This sounds like fun, but... also the sort of thing where, once Keltham figures out acid manufacturing here, he'll be able to reproduce it much faster if he leaves Cheliax and flees for Osirion. The real point here is learning Keltham's Law by seeing it in action, and then being harder on themselves about it than Osirions will be and creating true Keepers of Asmodeus. That's the way to pull ahead in this race for real.
And Pilar isn't really picking up how Keltham is thinking about any of these things. They should've maybe asked to have learned more Law first.