TIER 3
Next is basically a 4 star item, but with more challenge.

586 Progress
7000 Quality
No comfort zone
Must 100% quality to HQ
3 chances to craft per 90 minutes. A chance ends when you fail or succeed. Successfully reclaim does not use up a chance.

Not even sure if this is possible right now without a crap ton of luck or a BB on an excellent, so not sure this is even a good challenge. But the idea for tier 3 is just make something really hard to craft that is built around the main crafting skills you already use.

TIER 4
Ok, I am going off the deep end here a bit. I am sure others might have better ideas, but it is really hard to create challenges like this for one person. Hence the next section below.