Caitian, Ferasan, and Aenar Bridge Officer Requistions are tradeable so technically you could use the exchange to find one or have a good friend to give you one. I believe you can trade claimed Caitian Bridge Officers as well by trading directly with a person. All equipment needs to be removed from Boff for trade to be possible.
The Caitain Bridge Officer Recquistion Form is currently going for 6.5 million on the exchange. So two choices, either spend 6.5 million EC or 400 CP or convert 126,000 dilithium to CP. EC and dilithium are based on current market values and are subject to change.