Well for alchemy you're pretty much banking on Hexed Gear-1, considering ethereal squama is like 1m each you've just gotta get it right really, even if you farm the squama it's still at a 1m cost to you (opportunity cost, look it up!). It all depends on what stuff is still useful nowadays, Alchemists can still make gil off hexed coif -1 and hexed gages -1 definitely.