give a shot at rachel dungeon on that case. if you're on agi build you should have no worries with sb and isilla thunderstorm is easy to avoid (they have slow cast)
The last time I recall doing Rachel dungeon it was on my alchemist prior to bio in his 90s with flee gear; I recall issues with bad spawns, I think, with mobs of them breaking flee. Otherwise the maps would seem empty. But I imagine that may have changed by now.

I don't have the flee gear though anymore, so I imagine I'd be eaten.
I guess I could try it though. Though doing the quest for it again is going to be annoying.