Looks like fun. You've got a pretty good list, I would add a couple of small things on the
10 essentials list too (knife and first aid kit, for instance).
1. Map
2. Compass (optionally supplemented with a GPS receiver)
3. Sunglasses and sunscreen
4. Extra food and water
5. Extra clothes
6. Headlamp (outdoor)/flashlight
7. First aid kit
8. Fire starter
9. Matches
10. Knife