[Xack]

Update is when handing items in, so yes, can pre-collect.

Also note that you only need 2 of each item (and 3 for a few) even if you want the mount, as the items are the same for both tasks, and when you hand in an item, both tasks will be updated.

Task "Parts is Parts" (that gives the augments) require 1 of each item, and the other task (that gives the mount), requires 2 of each item (except for a few which it need 3 of).

You can therefor turn in items for "Parts is Parts" and get the first augment (which then also updated half of the mount-task), then get the "Parts is Parts" again and turn items in a second time, which will update the other half of the mount-task.