Right, now you made me think about the Vipers and the Raven's Talon. Dunno about the RT, but meh, it's sold on a Zoner base. As for the Vipers, I might write a request to CR to use them.
EDIT: Allowed IMG ships now with good RP reason (Request to CR), RT can be bought at Gran Canaria, a Zoner base... Meh, let's allow it, shall we? But I still want to see some Eagles flying around Islay, you hear?:P