Well, maybe those stellar manipulation components are "destroyed" simply because they blow a bunch of fuses when used.
Seriously, maybe the repair capacity of space yards and repair bays should be rated by structural kT/turn instead of components per turn. Say, 50kT for space yards and 80kT for repair bay IIIs, etc.
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"What do -you- want?" "I'd like to live -just- long enough to be there when they cut off your head and stick it on a pike as a warning to the next ten generations that some favors come with too high a price. I would look up into your lifeless eyes and wave like this..." *waggle* "...can you and your associates arrange that for me, Mr. Morden?"