Need some help on size of tuber

[sprtn4x4cw]

Alright so I've decided on a tuber, and am about to start designing it while at work, in CAD. I know I'm buildilng with brakeline, a MAPP Torch (the hose torch kind), Safty-Silv, and Flux. First of all am I leaving anything off? My other question is, I'm running Juggernaut axles, a 55t (or maybe 65t) Matrix pro lathe motor, and I want to run the swamp dawg tires, what would be a good length/width for the truggy?

I guess maybe what I need to know is how wide are the axles from hub to hub, and how long should my wheelbase be...like what would the ideal setup be? Any help is appreciated. Thanks.

Chad

Also I dont' want you guys to think I have NO idea what I'm doing, it just that I do the whole 4x4 rockcrawling thing with big trucks and I'm totally new to these little ones.