I've been working on a ship supplement for the Rzakki sector for my GM in a game and I have to say this book totally upends it. I've been trying to build what I called the Ramshackle Fleet, which is pretty much what they have in the Estuary Cluster, I just didn't have proper rules for building the junkers in use there.
Rzakki is a lower tech sector, mean is TL 6.7, with three shipyard systems, TL A, B and D but loads of boat building capacity everywhere, so I wanted to build lots of junker ships to show that off. With these rules, I think I can do that much better now.