I'm in a similar situation and am evaluating Sympa with a low cost VPS
http://www.sympa.org/
It looks to have a good web interface, customizable, and scalable to a decent size. I'm surprised no one has mentioned it. Mailman is pretty standard but is dated and not very user friendly. Customization seems difficult.
You're calculating based on a single camera. The Model 3 has 8: 8 x 200fps = 1600fps
I'm in a similar situation and am evaluating Sympa with a low cost VPS http://www.sympa.org/ It looks to have a good web interface, customizable, and scalable to a decent size. I'm surprised no one has mentioned it. Mailman is pretty standard but is dated and not very user friendly. Customization seems difficult.