Let's consider this. In order to OC that fx-6300 you are gonna need a decent MB (
R1400 gets you a very nice one I do admit), you will also require an aftermarket cooler to get that fx-6300 up to 4.4-4.6GHz clock speed. You are gonna need a slightly beefier PSU, the fx-6300 hits 180W TDP at 4.6GHz vs about 84W on the non-k series i5 models, in addition to this you are gonna generate more heat in the chassis which you also have to contend with. And at the end of the day you will still not reach i5 performance levels so I don't see the lack of increasing i5 performance as an issue as you would be ahead anyway.
So taking this into consideration locally the fx-6300 solution is gonna cost you more and you are still not going to reach the same performance levels as an i5 system. I was keen to go down this road myself but sanity prevailed. If we could get AMD CPU's at prices relative to US prices here I would say GO for it! Unfortunately the bang for buck element is simply not here in SA as in the rest of the world. My brother in the UK has a fx-6300 build which worked out way cheaper than an Intel build but here that is unfortunately not the case and I don't see why we should support the local arrangement. I'm not an Intel fanboy, I'm only on my second Intel system now, all my previous systems have been AMD starting with the K6 series in the 90's. There's a reason the fx-6300 is punted as a good performing budget build in system builders guides online and I agree with them, the only problem is that SA prices are not in line therefore those guides don't apply to us here in the good old RS of A