It is done.
1) Yes, I know I'm missing misprints and other rarities. Most notably missing is the European Copper Huna and more premium items (24k Gold Hau for example).
2) Also of note, I have some 02-03 masks in this list, including the gold Avohkii, Nuparu's orange Pakari, the gold Vahi, the MEK and Kraahkan, but they're in my collection so I count them.
3) I don't currently have plans to go get Kanohi Nuva, Krana or Kraata; I might consider the Kanoka, but those are super hard to get just right.
So yeah, that's 2 months' work. Just in time, too.