I have been in the same boat as you. We had an electric monster class, which basically if you had a vehicle with monsterish tires, and jacked up body, you were legal. So the popular thing was to jack up a stadium truck, or , ifyou had a stampede, run the battery underneat the chassis. I was suprised how well the Pede handled.
I would say that if you pickup the right RPM upgrades, the Pede can be one fun basher. I have seen it done with a whole lot of power being put through it. Only issue, its not a cheap thing to do and i think in the long run, you probably would be better with the T4.
That said, for your T4 look into Moabs, Mashers, or J-dawg tires, also the RPM front bumper works excellent. I think the only other thing I would have changed out would have been going to heavier duty aluminum spindles (I think that is what they are called). The plastic ones seems almost too suspect and would usually be what I would break. But, it just have been me.