Thanks for the information and all the hard work. I can't spare any cash at the moment unfortunately . Though, perhaps I can help by offering the following:
Out of curiosity, does F|A have any type of monitoring infrastructure, such as Nagios? If so, why wasn't there an early warning? If not, will there be to allow for future early interventions?
In addition - is it not possible to temporarily reassign the IP addresses to different servers? For instance reassigning Silent #1's IP to another server and setting up a temporary ET server that doesn't actually allow people to play but merely states that the server is currently down for maintenance and offers to redirect them to HC (server is full message is customizable). It might be a bit inconvenient but it might prevent those servers from losing a ton of players.