1. Sd's sucks also killin 1 vs 1 sucks more so thunderstorms or stoneshower runes. Spells = Vis waves and vis Ue or Terra waves and terra ue.
2. Around 250-300 lvl but all depends on your skill in hands and if u want kill them 1 vs 1 or by runes and spells. :p
3. Eq with death protection, depth galea all the time cuz no dmg from drowing from Sea Crests also it would be good if u gonna use meal for faster walking under water one costs on Antica around 30k and its 30k/24h.
Spellbook depends might be shield with death protection or just Spellbook of ancient Arcana. Dunno ur vocation as ms only diffrence between druid is Toga mortis, as more cheap I would choose Frostmind Raiment, Gill/soulful legs, koshei amulet or theurgy amulet, butterfly ring, boots with m lvl, moon mirror.
Tips? One of tip is this meal Coconut Shrimp Bake, another dont let them reach u cuz they hit so hard by melee. :D