I ended up buying 2x NAR ETD 4" bandages, 2x Hyfin vented chest seals (dual packs), 3x Combat gauze, 2x NAR decomp needle (14GA), 2 Nasal airways and some NAR S folded compressed gauze.
I already have some med supplies myself, like nasal airways, israeli bandages, compressed gauze, etc.
This should fill up 2 full sized IFAKs and two small IFAKs.