My mental image resembles a Palm Pilot using a USB connection or flash
drive to transfer data to home computer.

If I can't find a pre-assembled unit I need at least a BOM (including
enclosure) of a kit of parts known to work together.

Raspbian is intended OS.

My searches have been unproductive, primarily due to unfamiliarity with
the Raspberry Pi market.

Suggestions?
TIA

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