Well...that presents a problem.
Our .enc file (inclusive of Imported Items) is close to 10GB, and we're a small practice. Many practices have .enc files that are much bigger, of course. To upload your .enc file to support could take the better part of a day, and that's assuming you have a fairly fast connection. So by the time all the back-and-forth is done, you could be down for two days - not feasible.
There has to be a better way?