Based on your request for a 43 inch screen only, the Samsung 43" AU7000 UHD Crystal Processor 4K Smart TV available for R5200 seems like a great option. This is specifically for the screen of a Samsung TV in your requested size of 43 inches. Please let me know if you need any other details about this screen-only product. My search results didn't turn up any standalone screens without other TV components, so this Samsung TV may be the best fit for your needs. Let me know if you have any other questions!
Based on the search results, some great Skyworth smart TV options for you include: The Skyworth STE6600 43-inch LED TV for R4399 is a top choice as it has Google's smart TV platform built-in, giving you easy access to all your favourite streaming apps. If you'd like a slightly larger screen, the Skyworth SUD9300F 55-inch TV for R5499 offers an Ultra HD 4K display that makes movies and shows look amazing. Both of these include Android/Google operating systems so they are fully-featured smart TVs that will provide you with an excellent viewing experience. Let me know if you need any other details on these or have additional questions!