Ok, What is a good site to buy engines online. I know about towerhobbies and acehardwarehobbies, but are there anymore? I might look into a rb or paris picco engine. I will be sure to get a aluminum front torque rod and possibly a aluminum rear one as well. Maybe even a k3 chassy. Is anyone sure if the K3 mounts will be able to clear the pullstart of the rgx? will they fit in terms of dimensions? Im not looking fer a super race engine, but something to start with. I dont really want a nonpullstart cuz thats another expesnse of startbox... but that seems like a good way to go. Im now pondering a max of 250 to get my buggy back in action(exculding fuel and glow plug). Would any of you recommend some .21 engines, starter boxes, manifold, pipe? Thanks for all your help so far!!