(to avoid errors..please use RW cd/dvds in order to be able to delete the content and reuse it I screw up in my idea).
How about simply saving the ENTIRE "Stardock Games" folder located on the C drive! It contains everything the game needs so I suspect a simple copy to a cd/dvd would do the trick. Once on your sons pc, simply copy/paste the data in his CD drive (recreating the Stardock Games folder) and give it a run!
Should work!