Suggestion:
A way to quickly disassemble a ship into a container with out removing all the fuel etc first (it just appears in the box as another item) would be a good way to reduce all the ships lying around that are not being used. There could even be a special storage box for this function, a bit like a parcel container, but called a 'hangar' or similar. You link to it and it allows you to dump a ship and whatever cargo/fuel it has into it. It only works on static constructs so you can't move ships around with it. The storage would automatically make a blueprint of the ship in the state it was stored in. Then if you are linked to a 'hangar' storage box you have the option to deploy the construct and it's contents back to the way they were. I would suggest each box only allows one ship and has to be of corresponding size to the core (S/M/L). I would further suggest that the box is a 'black box' you can only put a ship in or take it out, you can't go taking individual parts etc. out of the box, if you want to do then then disassemble it the conventional way.