This guy managed to figure out how to solve that problem:Ships are modular. What if you swap 2 modules in hangar? How should it be reflected "on the walk" visual ?
He has a whole series of videos like that. It appears the ships are laid out in such a way that swapping modules will be possible.
Solution: remove carriers from the system map. After all, megaships and installations aren't on the system map, and those work just fine.Systems can be over flooded with carriers
At the very least, make system map visibility an optional module for a fleet carrier (maybe make it a module only available to squadrons) - call it, "nav beacon" or something. I don't know. I should also only be on if you can land at the carrier.
Finally, make very slightly different icons, or decorations to the icons, for different services offered. At the very least, an FC that wants to buy platinum from a miner should be able to advertise that without having to name their carrier, "platinum 500k" or whatever.