Those changes are rather simple, but will require a few updates to the database.
You may want to bookmark this page and keep an eye out.
I considered releasing a tutorial on some of the content you mentioned. It would include a break down of things you might not have considered.
- How many Stats points are gained per allocation
- How many Skill points are obtained per level
- Modifying how much health each stat point provides
- Combat Formula’s
- Devotion Point Cap