I personally enjoy my Raven Claw. My Outcast character flies it. RP is no problem. If your ID affiliation is friendly or neutral to the Junkers, you're within RP to purchase it. Hit F8 and click on the faction your ID is affiliated with. If Junkers is in the enemy list, you're out of RP to land on a Junker base and hence not allowed to purchase it. Doesn't matter if you are green with Junkers - if your faction is enemies with them, you can't land there. Simple...
As for the Raven Claw's capabilities. I find they are a bit of a challenge in a PVP dogfight. But they're great for pirating the less heavily armored cargo vessels. So for functionality, I give it 2 thumbs up for pirates. You really don't need the rapid, long-lasting, hold-the-trigger-till-your-finger-bleeds weapons capability. Just find some heavy hitters, like a Debs, a couple Nomads, 4 CODENAMES (2 each of different types) and a couple Wyrms do nicely. Buy missiles if you like, but will cost you more than than you'll receive from any pirating activity. Only a PVPer would prefer missiles. The big question is whether to use Torps or CDs. Torps help with the big ships but if they get to cruise, they're gone.