I'm new to the rc thing and I got a duratrax evader bx to start out in but, I don't know what body mount kit to use to put the dirt late model body on. Would appreciate any help, thanks.

I am not aware of a direct bolt on kit to put a late model body on that buggy. Not to say it can't be done though. If I am not mistaken, the evader is real similar to the losi xx buggies. I used to run one of those with the bolink body mounts mounted directly to the chassis in the rear and I fabbed a front bumper from Kydex with body mounts in the front. You may also want to look at dirtoval.com. Their is a picture gallery there that may give you some ideas. Good luck, late models are a blast.
Mike