Ok, I'm all for more structure. I'd like for the (non-canon) party to be a team of "fixers" on detached duty with the IISS (Imperial Interstellar Scout Service, for those of you who don't know). This means that you have access to fuel and maintenance for the Zax at no cost from any Scout installation, as well as lodging and meals and even pay. The IISS has even accepted our Zhos (and, naturally, their awesome Zhodani scout vessel the Zax) for this detached duty assignment, but they do get the occasional side-long glance from other personnel at the bases, but those glances transform to jealous looks of admiration when they see your ship. You still have enough free time to take on other missions that you wish, but when the IISS beckons you are expected to heed their summons in fairly short order. Each of you has the proper id and insignia to avail yourselves of all of the services offered at Scout Bases.
The Zax Hakjohn Quik is outfitted with the appropriate transponder signal identifying it as a vessel of the IISS. However, this transponder is easily disengaged for those times when stealth is desired. When it is turned on, communications from the Zax cause the IISS seal to appear on the commo readout of the recipient ship, so there is no question about it.