i stand corrected I forgot the supply. I have one but have only had to use it for indoor and home use. I usually just hook up to the goat. but if you run off a gen. you will need one I got a used 12 amp one for $25. You May have to get a new one though cause You dont see many racers getting rid of their power supplies. I think they are about $60 new at the SHACK or maybe even cheaper on ebay.
You could go with the cheaper end of ni/mh but I think you will soon want to upgrade so just go ahead and get the good stuff for either ni/mh or lipo and you will save money in the long run.
If you need a powersupply I got one that came with the bundle I bought off an racer on here. Its an old pc supply but it worked fine with the 1 pulsar sport. free for anyone who needs it just pick up the shipping