Assuming you're budget conscious, building a stock TT02 kit:

Radio:
https://hobbyking.com/en_us/hobbykin...io-system.html
Servo:
https://hobbyking.com/en_us/tracksta...09sec-57g.html
Batteries - search Hobbyking for "7.2V stick pack". Any of the Sub-C stick packs will fit - note the higher capacity packs are heavier. Personally I've got a few of the turnigy 2000mAh packs (https://hobbyking.com/en_us/turnigy-...ries-nimh.html) which should give you 10+ minutes run time on a stock motor
Paint - search "Tamiya PS"
Battery Charger*:
https://hobbyking.com/en_us/turnigy-...v-capable.html
Tamiya battery plug to banana plugs cable for charging with above charger:
https://hobbyking.com/en_us/tamiya-a...g-adapter.html

Have personally used all of the above and can recommend them for the price. *For the Accucell battery charger you need to buy a suitable 12V DC powersupply if you don't already have one. I use a laptop power brick style 12V DC, 5Amps: https://www.newark.com/powerpax/sw37...14_US%2Fsearch
Might need to cut and splice the barrel jack cable included with the accucell to your powersupply because the accucell uses a DC jack with a 2.5mm pin rather than the more common 2.1mm
Could probably get away with a cheaper wallwart style trickle charger if you plan to only ever use NiMH packs, but the accucell is definitely worth it if you want to fast charge larger capacity packs and future proofs you for LiPos.