|Migration can be a bit less chaotic than this.|
Image: Wikimedia Commons
At the time of writing, Google Takeout currently supports 19 Google products, which will undoubtably help with the transition. LifeHacker has a good instruction manual for doing this (scroll down to the bottom to see how to use Takeout in particular).
However, Google Sites does not appear on the list. This could be a problem, since we have started a long-term project of using Sites to create digital portfolios for students.
|Image: Flickr user Martin Lafrance|
Google Takeout can help your migration of Google Drive between accounts at different domains. This might be easier than trying to make copies of everything manually (in fact, I'm confident that it will be easier). Sites just requires a bit of manual manipulation, but it is certainly possible.