Now that I rearranged my equipment around (prioritizing event Equips since they seem to get the most total power) and boosted up all my unleveled Rainbow girls a bit (Mistletoe and Kerria, who already have their bloom materials at the ready), I'm looking at this for my whaleship:
Attachment 11567
I mainly only care about the first team so I do an auto power setup, then manually build my lead team from there. Lycoris, Dend, Loquat, Mei, and Sakura very rarely die anyway (it's rare if something survives their opening attacks). Also, Lycoris and Sakura (and Helenium) have maxed ampies of all 3 types and I'm working on Dend to be next (HP and atk first) with Kerria (def first).
Gonna farm the hell out of the Manyu quest and gold quests so I can get Kerria and Mistletoe into Bloom status, but I can finally say that my best ship has cracked 1.1mil w/o a helper.