pekka1

If you build a ship, is it possible to park it on a safe zone when not playing? What would be a reason then to build a fixed contruction on non safe zone? Are they mines and other production buildings that can't be built into ship?

And maybe the person who ownes the safezone just confiscates your ship  I know i would if you landed on my safezone with no rights on it, lets call it parking fee . We all need to make a buck or two
 

There's not much stopping this nomad style of play, and I've even considered doing so myself, but there are a few holes in your plan: You can't use territory units on dynamic constructs (ships), and size for ships is kind of limited right now by the core sizes. A ship would have a hard time scripting a bunch of smaller dynamic cores, voxel, and elements to fly together, than to just set down a few. extra cooridoors in a base or static  construct.