Probably the one thing that needs to be stated separately is to consider the RP of it. Both of your IFF, the lore behind the system, people, and what you're using it for. While you mention it, it really should be heavily emphasized. Understanding the RP aspect of things will go a long way even more than just asking as some random person, "can I build". This goes into location too, a very aggressive or secretive system should be taken into consideration.
In other words "does this make sense and will this logically result in retaliation in RP".
