I tried MT's a loooong time ago. It just didn't work for me. When things go wrong in some unpopulated uncivilized place, it pays to have tools that give a lot of leverage.
1. An adjustable crescent wrench, about 8 inches. This tool is also a good self-defense weapon.
2. Some tough pliers. High quality. Not small.
3. The biggest screwdriver you can find in the hardware store.

This stuff weighs a lot more than a MT, but when it's "make or break" out there, there's no substitute.

But ... have fun with your MT Obsession!!