Nice write-up on the Zephyr. I don't have any use for it, but nice story and interesting ship. I might question, however, the black market price. If the equipment (cloaking, weaponry) is difficult to obtain legally (which is implied), I could see a stolen ship going for full price, not discounted.
Also liked the Theurgist. Only suggestion there is that the links to the spell lists are a little too easy to overlook.