That there almost screams go with a Traxxas, as there are so many ater market parts for most of their vehicles you can build one almost completely(if not completely) out of aftermarket parts. I don't think there is one other brand that has so many 3rd part parts.
Associated. Tremendous aftermarket support for almost all of their vehicles. I could build a brand new RC10GT without using a single Associated part, except maybe the trans input shaft.