That's a cool idea, adding the blueprints to the perk screen, but I have no idea yet how to do that. I would prefer to keep the mod separate from Nexerelin, not depending on it. So far I've added all non-hero ships and wings as rare blueprint, meaning you can get them from quests and exploration. Once the actual "factions" are added to the game with their respective star systems, you will also be able to get their blueprints from raiding.
As for the own faction start, I guess the workaround would be to use the command console and use additem dsy_faction_bp to get the specific blueprint item for the faction you'd want to play as.