Damian.
CP-1487 is profiled already in the database as a Piper PA-34-200T and I have confirmed this to be correct. I have deleted the Cessna profile.
CP-1091 remains as a Cessna 310R cn 310R-0020.
I can find no references to CP-2918 across the Internet.
May I suggest that you upload to this post the photos you have under this registration as others may be able to assist with the identification.
Malcolm.
Admin.