I hope Kirilloff can stay healthy, but as of now I can't start him defensively over Santana at 1B. I am leaning toward Kirilloff being the primary dh, certainly against righties, as Santana has a good glove.
Here is what I would do, and not in batting order, just position order (this is all subject to change if they add another bat, and of course, depending on health.)
Against righties
C Jeffers
1B Santana (but maybe Miranda is here?)
2B Julien
SS Correa
3B Lewis
LF Wallner
CF Buxton
RF Kepler
DH Kirilloff
Against lefties
C Vazquez
1B Santana
2B Farmer
SS Correa
3B Lewis
LF Castro
CF Buxton
RF Kepler (or Martin? Or a different right handed bat?)
DH Miranda (is he healthy?)
I mean, perfect world they sign Bellinger to be the primary 1B against righties and the CF or corner outfielder against lefties. But that's not happening.