Calculators: options from Record Industry's calculator; its prices as a benchmark

Reviewed Record Industry's (Haarlem, NL) public vinyl calculator: a
seven-step wizard with a live itemised cost list priced on its server.
Read its prices for a reference 12" LP at 200 / 300 / 500 / 1,000 copies
and for each option worth copying (checked October 2026).

Both artist demos (make-a-record and artist-order):
- audio arrives as digital files, analog tape (+ tape transfer) or a cut
  lacquer (no blanks, cutting or mastering; mastering choice disabled with
  the reason; cutting and mastering stages skipped in the timeline; the
  passport starts at "Lacquer received")
- labels printed, plain white or plain black (credit line; the label
  artwork drop is disabled for plain labels; the mock-up shows the plain
  label)
- press cleaning before a colour run, on by default, disabled for black
- 7" dinked (large centre hole), 7" only, drawn in the mock-up
- download card and barcode sticker extras
- run-out inscription (A-Z, 0-9, up to 15), scribed along the dead wax in
  the mock-up and named in the passport
- new rates (tape 3,800, cleaning 2,300 per title; plain labels -12 per
  disc; download card 43, barcode 6 per copy) are estimates with Record
  Industry's prices as the basis, each listed in the detailed demo
- make-a-record investor notes: Record Industry's 9 to 11 week quote after
  test-pressing approval against the 7 to 9 week CNX quote, and its 2 %
  reject allowance against 100 % optical inspection

Defaults unchanged (37,836 THB per title, 232 per copy at 100, break-even
41, goal 100, 548 kept).

Docs: artist-platform.md (choices table, benchmark section: what was
taken, what was left out, commercial terms worth deciding);
revenue-model.md (second Western data point: 219 THB a copy at 300
ex-works, per-title and per-copy reading against the assumptions, not a
re-base); production-timeline.md (its published lead times).

docs/production-timeline.md

@@ -34,7 +34,12 @@ Reported EU/US plant lead times run roughly **10 to 16 weeks** for a
 standard black LP, down from the 6-to-9-month peak of 2021–22. That
 figure is an industry impression gathered in conversation, not a
 surveyed one, and it should be tested at Making Vinyl alongside the
-price. Two cautions on the comparison:
+price. One published data point: Record Industry (Haarlem, NL) quotes
+**3 weeks to test pressings** (from complete files, or from a supplied
+lacquer's arrival) and then **9 to 11 weeks** for the finished order
+after the customer approves the test pressings and the artwork
+(calculator FAQ, checked October 2026), which on the same reference
+point compares with the 7 to 9 week mature quote below. Two cautions on the comparison:
 
 - **It is not like-for-like.** The EU/US figure is a *quoted* lead time
   carrying queue and buffer; the CNX figures above are unbuffered stage