My preference, as a client, is for the fabricator to arrange for me to fly to Tahiti where we'll proceed with me taking formal posession of the doc's.
But generally speaking, this activity is governed by client specifications and purchase documents. If none exist, then the purchase agreement was poor (fault to both client for not providing and manufacturer for not asking). If you are in this situation now, then you need to reach an agreement equitable to both parties. Otherwise you have a 50-50 chance of not doing business again, and that could be detrimental to both.
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