Cab section - I can see what I can with the aluminum and possibly come up with something that might work.
Wider then a stock WK chassis setup - That isn't a problem, I'm sure i can do something like that.
Adjustable shock mount locations so we can set ride heights - Glad you said something, I forgot about that. The way I'm thinking is having a few different shock mount holes going up and down where the real shock would go on the real monster truck. Sounds like a good idea in my head, not sure if others would like it.
Long enough front-rear that it looks right, too stubby and it's blah - Like I said, I'm going to try and keep this to scale based on the real 1:1 chassis. The only thing that I'm debating on is keeping it 12th scale as per the Wheely King or making it 10th scale. I'd rather keep it 12th but what do you guys think?
Easy battery access location - Reusing the battery box sounds like a plauseable idea, keeping it held down is another.
Thank you William for all the good ideas and suggestions. If you have anymore, please say so. As for everyone reading this, please speak up.