Hey, welcome to the site!

Wow, got any pictures of this Beast you can show us? Sounds right up my alley anyway.

A couple of suggestions for your brakes:

1. Expensive, but see if you can locate a wrecked SRT Ram and grab the whole braking system and anything else you can from it and adapt it to your truck.

2. Much cheaper, look into adapting a set of brakes off of a 3/4 ton truck.

As I'm sure you've noticed, the entire front-end on these is big, empty box. I've seen a couple of these trucks involved in front collisions and they fold like a carboard box, and so does the cab. I mean, from what I saw, they have horrible protection for the occupants. My opinion, You really take your life into your own hands if you start removing the inner fenders and going fiberglass hood.