You use Eagles, why not also use the Roc MkII when 4.85's ready? Likewise, I'd think you could add the Griffin... y'know, when it stops sucking. Right now it's just like an Eagle, except worse at everything.
I'm mentioning those two a lot lately.
Also, I suspect the answer is yes, but are JG members allowed to keep using the Tiger Shark after the probation period ends?
For Traders, I'd recommend Dromedary, Camara, Armored Transport, Transport, Large Transport, and Border Worlds Transport. Every NPC Zoner freighter I've seen was a Dromedary, so it makes sense to me that the trade wing's main Transport would be the Border Worlds Transport. The rest of the list is quite generic, without including the Trains that I really can't see Zoners using.
Now, on the overall re-structuring, I think it's great. I won't lie, I've had some unpleasant experiences with JG in the past, but it looks like you're really trying to improve and emphasize the Zoner part of "Zoner mercenaries"