So there didn't end up being any downtime, and our little Drupal site is now hosted on a new VM. No new functionality, but another caching layer is in place for anonymous traffic that should help a bit. We've also taken some measures to help combat the spam accounts that have been polluting the forums.
While the site is basically unusable on mobile devices, hopefully it will still remain useful for a while. Believe it or not we are coming up on 1,000 characters that different users have rolled and signed up with for games in the Chicagoland area. Hope to see you at a table soon!