The Vizio screen does ship here and will cost ~R5 100 all inclusive (that's shipping and customs).
The best way to see if a product will ship here would be to add it to your basket and proceed to checkout.
Only in checkout will you see if it'll ship or not, and have the option to place the order - so you need not worry about spending money first
And yes, that 120Hz refresh rate. That's why I recommended it. I spoke to someone in the US who uses one for gaming (console and pc both connected) and he assured me there was no ghosting or input lag on the screen.
Also, if you order the screen through Amazon (seems the only option), you'll have a 1 year warranty with them.