From what I could tell, the Death Star in EAW is not a complete separately modelled ship. If it was, you would be able to select a target for it... unless it has turbolasers and the system destruction is a special feature tacked on to it. If this is the case, there may be hope for taking pieces of that to construct a mod DSII. Who knows. Actually it is, but it is not designed to fly around a tactical map like an X-wing, Mon Cal, or Imperial SD. The DS takes time to position in galactic and is slow to move in tactical. Heck if you want to make it a DS II go into the XML and adjust the size by half. Instant DSII.