What speed of internet connection will be enough for rendering? Maybe it is much profitable then mining but I think there will be no work for loading hardware for 24/7.
Based on the suggestion from Leos team a minimum internet speed of 10 mbit/s , 8 GB Ram and Nvidia/AMD min 4gb GPU is recommended. They already have the script to close the mining software when the rendering jobs comes in.The system re-start the mining software immediately after the render job is completed.