Dakki to you is basically Sol to me. But hey, you know that already
It helps that her scenes establish that she pretty much regenerates away your refractory period.
My MT on Sol was... quite honestly a shot in the dark, I'm just lucky my loli waifu happens to be one of the best supports, at least for her time. Still is though, IMO.
I... really don't recommend having a Kaiser over a kami if you can help it. Firstly, I'm not exactly sure what your team setups are, but if you still have an element which really lacks hime, and your main teams are good... boost that lacking element.
The days where one main element to carry through all content and a secondary to counter the main is mostly gone, or at least will be gone soon, given the introduction of GO, tower, AQ5 and true rags. Kaisers only exist to buff the teams further, and besides you can buy them soon in 2 weeks time. Expensive, yes, but much more worth than spending a miracle ticket on them.
And mark my words, unless you've been space whaling you won't be not needing himes for your other teams.
100% eidolons by the 50 bucks miracle...? Not that I can remember seeing the DMM wiki. The almighty 150 dragon eye miracle ticket includes all available hime and eidolon though, and yes, that includes limited edition and 100% eidolons.
For the low low price of 150 dragon eyes...