Bob aka. BZeroB2 posted this article after I wrote about starters for the Mustangii.net - but that's been down for 'donkey years'.
Here's BZeroB's article:
https://bzerob2.wordpress.com/2012/11/04/ford-upgrade-to-a-pmgr-starter/
RockAuto sells a starter: POWER SELECT 3268N
Alternate/OEM Part Number(s): 3200, 3205, 3268, 3854190, 38541900, 3C2411000AA, 3C24AA, 3C2Z11002AA, 3C2Z11002AARM, 987811, E9SF11000AA, E9SF11000BA, E9SFAA, E9SFBA, E9SZ11002A, E9SZ11002B, E9SZ11002BRM, F7SU11000A1B, F7SU11000AA, F7SU11000AB, F7SUA1B, F7SUAA, F7SUAB, F7SZ11002AA, F7SZ11002AARM