In PvP, someone cores a capital ship and goes to loot their winnings, they cannot?
Edit: I should say that it might be SLIGHTLY over powered to be able to disassemble a capital ship in under a minute (if that), depending on size - perhaps it could be set so you go into the build mode, disassemble the ship, but the actual disassembly takes perhaps 10 seconds per 500 blocks or something - you must stay in the build block that entire time, making combat looting dangerous and requiring cover from friendly ships.