Rims with the most offset?

[Combatcm]

I'm converting my MT2 18SS into a monster truck to race. I bought RPM stablemaxx rims for it with some TRC paqman tires. The tire sidwall comes close to scraping the shocks. The truck compares to the old narrow maxx trucks. I'm looking for offset rims like truggies have, where the hex is a cm or two away from the side of the rim, the stablemaxxes are mid rim. they are usable, but for racing I could use every mm I can get.

http://i3.photobucket.com/albums/y93/combatcm/MTbig.jpg