Hey Crash...lets get this straight...at first you wanted a BIG truck to race, and now you want a BIG truck to bash only, correct?
Unless you go petrol powered then the Nem/Gen is going to be the truck for you...from the sounds of it they are the BIGGEST BADDEST trucks out there. (Staying nitro anyway)

The other thing you could go for is a twin engined Savage.
Or the 1/6th Sav conversion [link=http://www.neweramodels.com/item.cgi?part_id=2790]HERE[/link]
Or maybe get a 1/5th HPI Baja petrol. [link=http://www.hpiracing.com/kits/kitMain.php?partNo=10600]HERE[/link]

Or this [link=https://www.trust1.com/commerce/index.asp?merchant=strongmaterial&department=FG+Of f%2DRoad&aisle=Bigfoot+500+Monster+Truck]HERE[/link]