I do have a few corrections for the spreadsheet. I used my cross referencing materials and found three to correct:
N731SA and N768SW are both still in the Spirit Livery.
N8608N is painted in Heart Livery.
Other than that, I can confirm the google doc from page one is up to date and accurate.
Official number is 193 aircraft still in the Spirit Livery, 546 in Heart. (Not counting any undelivered Max)
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