Oh sorry! Got wrong impression from thread title. Good luck with ur quest. I don't think I have seen Cap7d bp ever though Chilix did loot an L bp back in 2011.
The thread title didn't mention anything about blueprints and without punctuation in the body of the post, it's unclear that you aren't just listing "Arkadian BPs", "CAP 7A" and "CAP 7D" unless one studies it hard enough to work out that you probably don't mean "buying any Arkadian BPs" as the first item in the list. I've edited the thread title and body for you, for clarity.