Bolster Fixed. Why did I wait so long??!??!
Finally ordered the correct alcantara and took my car to the upholstery shop (Jesus Upholstery Shop in Albany, CA in the East Bay).
In a few hours, Jesus cut out both worn/holy (pun intended) outboard driver's side bolsters and sewed the new alcantara back in.
I haven't cleaned the rest of the seat/interior yet so the photo isn't how it'll look by the end of the day tomorrow, but the bolsters look perfect. If you've been living with that nasty hole in your driver's seat bolster, it can be fixed beautifully.
'03 330i/6 ZHP TiAg
2017 Chevy Bolt
2016 eGolf meh... Gone
Donated: '97 328i (wife's)
Sold: Supercharged '96 318 Convertible
Sold: '05 330/6 ZHP SilverGray