How is the progress on this project going, Andrew? I was re-reading your hack and remembered how much I liked it before. I've been wanting to try it out! The one thing I feel I would change if I ever create a CairnHammer derivative would be to use something like the GLOG Magic from the Cairn SRD. It's a magic system I really like, and I believe with some light adjustments it can convey the kind of dangerous magic you expect from a grimdark game.