Are you expecting to receive all the inventory items that you need to use one-by-one to unlock the things?

You don't get those – they simply appear. And if you were up to level 40+ of the MSQ then you would have collected most of the free minions and such in any case.

I don't think there are any orchestrion rolls given by quests until long past ARR.

Outfits come from the Calamity Salvager as noted above, but again I don't think there's anything much to claim. Just the early-game gifts and the two pieces of Garlean uniform from sneaking into the castrum.