Since the tools for keeping track of the materials you need for the blueprints you want are non-existent, and most of the mission grind is focussed on data and goods, it would at least be nice to be able to trade for the desired assets on-site rather than having to schlep to the nearest station and back. For that matter, why should I have to schlep to another station to upgrade my suits and weapons? The fact that engineers' bases don't include these services seems completely illogical both from a lore and a gameplay perspective.