5. Remove rest 116. (If desired, it unnecessarily prolongs games).
Regarding point 6, I agree completely with Wlk777. It only adds unnecessary save loading.
I believe that simplifying the Grail excavation is not rational, as I once found it myself (on the mini-map there was lava, and the lava respawn was one and small; in three turns I found it, visiting only 3 obelisks).
I will abstain from commenting on the remaining points.