hello

[Flag Captured]

Basically as above.

I'd also recommend learning how to build one in theory too, even if you don't actually end up building it yourself. If you're wanting to enter it in combat, something will get broken - it's just part of the hobby. If you can't fix it, you've got an expensive paperweight. Also in agreement with Niels in that you could have a chat with Maddox, he built HardWired 2 and that's held up excellently in combat so far. Only things that went wrong were the things I mucked up on my end...

If you want a basic 'starter kit' for a build, I'd invest in:
2x Botbitz TZ85A speed controllers
1x Orange RX R620 receiver (or equivalent)
Spektrum transmitter (again, or equivalent, I have a DX5e)
Pair of cordless drills/see if anyone's selling a set of GR01/2 gearmotors
12v battery, I would say 3S LiPo but I'd probably advise newcomers against jumping straight into LiPo batteries because there's extra rules and regs on them all (and safety precautions). Probably a 12v NiMh or something would do the trick.

Add wheels and a chassis, you're good to go - wheels can be found on various places, or done yourself (Ellis - https://www.youtube.com/user/TeamExpat/ - has some great tutorials on this, as well as https://www.youtube.com/user/RobowarsNSW) and a chassis can be constructed out of wood, or HDPE with very basic tools.

I'd suggest looking at the build diaries in any case, so you can get an idea about how all of these work. Whether or not you end up having a machine built for you or you do it yourself, I'd say the knowledge of how they work even at a basic level is pretty vital.