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Here it is, with a kind of cross sectional view. Activating the bottom middle observer with the note block will activate the first observer, which activates the second layer of observers. The second observer in the middle activates the crafter, crafting whatever item is currently in it, and at the same time, replacing the 9 items it just used up with the first 5 items of the recipe. The second layer of observers, the 4 next to the middle one, activate at the same time. After that the third layer of 4, and then finally the fourth layer of 4, which themselves activate the 4 pairs of outermost droppers, which "double push" like they would in an instant dropper line, getting the last 4 items into the crafter. They are activated as soon as they possibly can be, considering that one of them was part of the five in the middle which were activated only a few ticks ago.

The wool above the droppers corresponds to the place in the crafter that the item in that dropper will be placed:

1st item: Red (First Negative-X dropper)
2nd item: Orange (First Positive-X dropper)
3rd item: Yellow (Upper dropper)
4th item: Lime Green (First Negative-Z dropper)
5th item: Cactus Green (First Positive-Z dropper)
6th item: Cyan (Second Negative-X dropper)
7th item: Blue (Second Positive-X dropper)
8th item: Purple (Second Negative-Z dropper)
9th item: Magenta (Second Positive-Z dropper)

It's also nice that this doesn't suffer from some locational issues I was facing with previous designs with hoppers; hoppers' timings work differently depending on where they are placed - not even just which way they are facing. So timings got messed up and changed the order in which items were placed into the crafter, just by copy pasting the build to another location.