Factual Error:
ArmorMech does NOT use luxury fabrics as far as I can tell. It only uses underworld metals.

Quibble:
Artifice also provides an epic Relic in the endgame (in addition to the epic lightsabers).

Additional:
At tier 6, treasure hunting may also provide orange crystals.

Note:
It is worth noting that Treasure Hunting lockboxes can provide prototype quality gear on a critical result (although a sum of cash a little less than that invested is more normal).