1. Write the one-page brief and set a delivered-budget ceiling.
  2. Obtain one credible domestic comparison.
  3. Contact up to three Vietnamese candidates using the same questions.
  4. Ask for named fitting stages, not just a completion promise.
  5. Create a cost sheet with unknown charges visible.
  6. Identify a local fit assessor and a carrier clearance contact if shipping is contemplated.
  7. Do not release a wardrobe order or deposit until the material gaps are closed.

Bottom line: the DIY route is viable as a disciplined commission-management process. The decision is not simply Vietnam versus the US; it is whether the particular tailor, fitting route, specification and remedy give you an acceptable path to a wearable suit.