(OOC: 3 uses per day. No total charge limit. Perhaps unintentionally, the writers, in my opinion, made a colossal blunder in making the Eternal Wands usable by all Arcane spell castes instead of being spell trigger like regular wands. This has the dual issue of letting Wizards use Cure Light Wounds and its ilk (it's a Bard spell) while letting Divine casters never use an Eternal Wand. Many GMs, Mogthegob included it seems, have either house-ruled it or never realised the terrible wording in the book and just always played the Eternal Wands as being spell trigger like a normal wand.
As for divvying, my suggested divvy is above--scrolls to Seat, Eternal Wand to Siobhan (Druids don't have the spell yet at level 3, so it's efficient), then CLW potions 3 each to the other 4 characters)