Update on the project. I started narrowing the LST tires, I think I got the perfect width for what I want. I can always make another set, these were old and cheap! I'll be narrowing the beadlocks too (Maximizers). As you can see, I also picked up a set of Twin Force axles and will be using those instead.
This is a sllloooowww project! :)
Narrowing the tires:
gluing
Comparison
Final