At the bottom of the millennium boys product page (or maybe in the free archives when they return) is a converter that will convert the basic hai types to the mil boys. Beyond that, anything to the milgirls will work as well, and the rest can be fit to them using scaling and translation (moving it to the head, lol) and re-parenting.

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)