HI HI i didn't get to this yesterday but i'm so glad you remember jericho's dwarven cowboy con gang i'm crying!!!

with ffxiv version of jericho, i think that gang would be a bunch of scheming yeehaw lalafells, i wouldn't lie to you ever my hand is on that bible! (though in dnd, the one outlying member of the crew excluding jericho, who was a kobold named "egg-eyes", would be a lil goblin i think FHSDJKF.) the gang itself would commit the same hit-and-run fraud in this setting: a bunch of miners who snipe rich ore deposits by spreading false information and selling enchanted, counterfeit ore.
(with varied store fronts and occasional black market steeping- precious metals only traceable as the gangs via an imbued invisible signature seal that someone would have to crack the material to find; and only being /made/ visible under certain aetheric conditions. thinking, like, irl example: uv reactive ink stamped on the wing feathers of pigeons to identify them.)

overall lyin', cheatin' and stealin' cowboys. just like jericho! the group's influence on jericho's "foundational" years of copying and grabbing identities to form his own would still be there! the only difference i feel would be the two "leaders" of the gangs motivation;
in dnd, the two (who are siblings) are both rune-smiths, magically enchanting weapons and tools. overtime, they get jaded out of the dwarven style of living via monotony. in ffxiv, they would be ul'dahn goldsmiths that fall out of reputation and the public eye for similar reasons, but with a different flavor of backdrop?! and probably... a bit more notoriety... word spreads in thanalan. versus dnd, a whole continent divided province to province, there's more cracks to squeak through.