While it might be better to wait until the site fills out a little bit more I highly recommend that you make an application thread somewhere for people to submit requests for the powerful not-so-commons out there in the Galaxy. I've seen this done on several Role-Playing sites and it's a good way to both keep potential God-Modding at bay as well as give something for players to RP towards. The way I did back when I Co-Gmed Eternian Bliss was to make people fill out a template listing the name, abilities, cost, special properties, if it requires standard maintenance, etc etc, then require then to post links to the various Developmental RPs they have done to construct/obtain what it is they are aping for. These things could range to, within reason, a special Lightsaber or even something like the Death Star and taking into account the power and potential use for the Item being apped for you can require more or less Dev RPs. This method isn't for everyone, and like I said it might be better to wait until more people join before you implement it, but I actually like the idea of having a system to keep powerful and unique items from running rampant as well as having something to work towards. The aping system could also be a really nifty way for minor factions to increase their power without over expanding or stepping on the toes of any admin out there lol.