Well, You got the right guitar for that style! ?
Amp wise, I'd check out gumtree for a second hand amp. Probably get a better deal that way. If it's just for bedroom practicing, a 30 watt amp is perfect. I think roland cube is a great way to go if you can find one for that price.
http://capetown.gumtree.co.za/c-Stuff-for-Sale-musical-instruments-Marshall-Valvestate-20-Model-8020-Guitar-Amp-W0QQAdIdZ203856869 You could get a nice marshal.. You may need to put a pedal in front of it though, not sure what the gain is like on these marshals.
http://easterncape.gumtree.co.za/c-Stuff-for-Sale-musical-instruments-Peavey-Guitar-Amp-W0QQAdIdZ202999770 If this amp is still available, I'd buy it.. I used to have one, it was pretty awesome, loud too.. Good amount of gain! ?
I guess, reality is, some cool little SS amps out there, you godda play a couple and see what you like. You will probably have to get a pedal to really get that fully distorted sound. I think?