Ofna 1/8 road car

[SidewaysLS4]

I'm having a hard time figuring out which kit to get...GTP or Pro. From what I gather, the Pro comes with the hardened ring gears in the diffs, different rear shock tower/shocks, and a body with mounts (which I'll probably replace the body). I'm not following the offset changes though. I'm looking to build a high-speed basher, no racing here. Is the Pro more suited to turning one direction only? Would the GTP be better for me? I'm really attracted to the low GTP price, but I'm thinking I'd have to buy body mounts and hardened ring gears from what I gather, but I figure this would be cheaper than the ~$120 premium over the Pro kit, unless there is something else I'm missing here that would make the Pro be a better choice.

Anyone get a good handle on the difference between the GTP and Pro, and what the offset differences in the Pro do in relation to an electric conversion? (I'm thinking MMM/2200/6S)