This is how I do ARII speed run on blu/run:
1F 1-2 Vulture > 1-2 Merrow Kabukidancer > Skip rest
2F 1-2 Leech > Merrow Chantress > Skip rest
3F 1 Flytrap to unlock dex/agi/mnd > 1 Merrow Chantress if missed related unlocks on 2F > Skip rest
4F Skip floor
5F Try to avoid all single gears > 1 single gear to unlock body > Get all ramparts to pop > Train them and subduction all
6F Ignisx2, barparalyze, barblizzard > Armored Chariot > Khim > Skip rest
side note: I don't bother with casting anything other than erratic and regen until 6F.
If you are doing on MNK, I would highly recommend you to make sure to bring remedies (for chariot and khims) and an install shell scroll for khims to save time (and for safety). While it is true that stat vomit lets you dodge most attacks, paralyze can still be a huge annoyance when it happens to go through.
Planning on doing this as PUP so I think I should be fine with the shell and support, still may have to bring remedies but I will be subbing /DNC most likely so I can healing waltz most stuff off. Thanks for your very in depth breakdown, saves me the time to make a route and kill list.