Being in a shadow area would mean it would be in orbit of something, and at best it would be in shadow 50% of the time and still need the same amount of shieldi

Being in a shadow area would mean it would be in orbit of something, and at best it would be in shadow 50% of the time and still need the same amount of shielding for daylight operations. Being in orbit would also mean its position would be much less stable than it will be at the L2 point.