I installed the WebPageTest server when we first started using our own version of WPT almost 5 years ago and I've done many many hacks on that machine over the years. @dpifke suggested we should move it in-house and that's a good idea. We can do that as a quarterly goal and set it up.
One thing that we need to take care of are the log files (the history of the tests are in logs) that today is on a shared disk.