There are two different profiles for the Firespray-class system patrol craft printed in the Beginner Game and the Core Rulebook.
The one in the Beginner Game is for a customized model and comes equipped with concussion missile launchers (probably as known from the Slave I in Attack of the Clones) instead of the light tractor beam projector of the stock model. Forthermore its passanger (/prisoner) capacity is only 4 instead of the regular 6 and it is available for 40,000 credits, costing half of its stock counterpart.
I would like to know why that model is so much cheaper and how to best incorporate the difference into gameplay (story-wise). Where are the different versions available? Do the concussion missile launchers require the extra space originally meant for two prisoners? What would it cost to re-modify such a ship to return it to stock specifics later selling it for twice its price? etc.
Thanks for any ideas.