Yes, that is my plan... except I have real kefir grains, which are better than the starter kits sold online. google for "dom's kefir site" for great info on kefir options and different milks you can use. I may have to wait awhile though, my wife is too worried about trying it, even with her own breastmilk. Max is just so sensitive.
coconut water kefir would be wonderful, but max is even allergic to coconuts....