Hey, I'm doing an overland trip to Big Bend in a week and a half with Central Overland. I'll be out there for about a week.

Here is the essential gear list:

Front and rear vehicle recovery points, high strength
Spare key, hidden outside of vehicle
Portable light source w/ batteries
Emergency contact, family or friend
Fire extinguisher
Basic first aid kit
Cash
Jack
Tarp
Shovel
Jumper cables
Drivetrain fluids
Recovery strap
CB or 2/70 HAM radio
Tool kit, appropriate to vehicle
Spare parts, appropriate to vehicle
LT-rated tires, or higher
Full-sized spare tire

I'm working on getting squared away for the trip. Any recommendations on fluids, tool kit, and spare parts for the VX? Favorite recovery strap?