Most RTR kits are not ready to go out of the box. Like AzBobby said, a cheap sportpack should work, I ran an 1800 venom in my starter thing, but it was also for teh traxxas one. Any sportpack will work, I recommend you get NiMH over NiCd, cause Nicad suck. Chargers, about anything will work for this application, but since you are going to need batteries for your radio, ( get rechargables as well) a decent charger will work, the Piranha from tower will be good for your application, and should do both the radio and the starter wand battery, and if you wanted your rx pack. All of those should be charged between .5 and 1 amps, you can go higher, but it is not worth it, you do not need extra boost, and the higher the amps, the less life your batteries have.
Probably going to have to get a glow igntier as well so plan accordingly.