Start with total landed cost
Unit price is one line. Add freight, duties, inventory carrying cost driven by long transit, quality escapes, travel, expedite costs and the working capital tied up in in-transit goods. Domestic suppliers often close a surprising portion of a nominal price gap.
Identify capability gaps honestly
Some processes and volumes have genuinely thin domestic capacity. Determine whether a domestic source exists at your volume before building a business case around one.
Plan the tooling transfer
Tooling ownership, condition, shipping and requalification are where reshoring projects slip. Confirm who owns the tool and whether it will survive the move and requalify in a different press or machine.
Sequence the move
Move one part family at a time, keep the incumbent running during qualification, and set explicit exit criteria. Parallel supply costs money for a few months and protects revenue that is worth far more.