[lime-users] LibreRouter client capacity for large event

Hi folks, We're considering using LibreRouters at an event with over ten thousand people. Some networks would be set up and remain constant for two weeks, and others would be set up for an hour or two, or might even be mobile (sort of like the Pirate Box / Library Box). Some would connect with the internet, others would not. Any estimate of how many WiFi clients each LibreRouter can handle simultaneously? (I remember hearing a WDR3500 can handle about 20 WiFi clients). Any ideas about making the network more resistant to interference and malicious attempts to take it down? Any other suggestions? Different hardware? Cheers, Pato