The hyper PBS will be fine (you could even get a hyper 7 TQ or TQ pro if available) The 8 port engine is better than your standard RTR engine, and is quite fast though I think the radio set isn't up to much. A kit is a better idea but if you get a RTR just ensure all screws are threadlocked and make a few upgrades before you start. I don't know if the PBS has CNC chassis braces but if it doesn't then get them. Also get a strong steering servo along with a 6V receiver pack. I regularly do jumps of 7ft plus and break little (you will always break something whatever buggy you buy) the parts are cheap and there are plenty available on ebay at cheaper than hobby store prices. If you are buying parts off ebay (which I recommend) then the hyper 8 is just as feasible and is a better buggy, but you won't see the benefit if you just bash.