I don't agree that you have to have a top of the line kit. I think that he could get a good middle of the road car, we are talking stock rubber class here on asphalt. I think that rock solid car like a TC3 or anyting of that vintage or newer would be good. New racer first starting out would be better served learning all the tricks that a 4wd sedan. If the OP wants a top of the line TC that is up to him, but to tell him that he needs to buy a top car I don't think is responsible. IMHO you have to be a top driver to get the most out of a top level car, if he is just starting out in something so different from Mini-z's and off road nitro getting started on something that is strong and will teach him about tuning, one ways, spools, tires, ride height....
Getting a car that would get him started and well supported by the local racers would be the best thing for him.