I can't see how that makes economic sense. I can't see your sig so I don't know what CPU you have but a 360 will probably be OK unless you have a heavily overclocked cpu.
My concern is more with that system's cost. I'm not saying that the kit is overpriced; it's not, it's less than the individual items on OCUK but I question whether paying nearly £400 for a single pump/res, single cpu block and a 360 rad can possibly be worth spending that amount of cash.
Your cash not mine, but I'd be looking for cheaper options. I've had expensive cpu blocks and dirt cheap ones and there's little performance difference. One of my rigs has a £15 Chinese block and it works perfectly adequately. I bought a Chinese copper 240mm rad and although it's not currently in use, it passed my leak test and was clean inside first time. Barrow fittings are just as good as EK or BitsPower and cost half as much. My experience of EK tubing was that it leached plasticiser and so won't be one I personally could recommend. Fluid is fluid; I've used plain old distilled water without a problem.
As a self-confessed noob, you buying a kit is fine and all, but wouldn't you like to learn from the process? Do a bit of digging, find some options?