This is easier with the Definitive Edition.
Follow either of the other two guides, and that will get you about 97% (without a lot of heavy re-hunting). If you're low, don't worry about it too much.
Then what you do, is after fighting Victor the first time in Eden Tower, return to the Shifting Sands. You'll have a notification that there can be storms now.
Once a storm starts (FYI, many purple enemies spawn, so this is a good time to farm), you can fast travel to the crawler or any dungeon. Once you fast travel back to SS, there will be new hardware pickups. Collect to your heart's content.
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