Considering that I'm still working my way through the Building Stuff section of Special Mods, the answer is probably right in front of me and I've not found it yet - but I thought I'd bounce my "How does this work" off you guys.
So lets say you want to build a Mechanic's Utility Suit. Looking over the stats (2 soak, 1 hard point), it's probably using the Light Armor template as a base. But the big draw of the armor is not in the stats, but in the add-on of "The wearer counts as having a EotE Tool Kit" - but for way less encumbrance than the actual tool kit.
Now, looking over the advantages and triumph add-ons listed in Keep the Peace, obviously they wont have something super specialized like Wearable Tool Kit in those options. Meaning that the player wont be able to build the Mechanic's Utility Suit without coloring outside of the box.
So, how would guys handle that? Let the player build the item and just throw on the bonus? Make them give up hard points? Problematic, if the player doesn't roll enough advantage/triumph to be able to build a HP into the item. Something else I've not thought of yet?