There are a few smaller versions, the link I posted above shows the selection made by CCK for instance. Tho I'd probably say they might just not be for you, and a tall Nakiri would be better.
I'd personally probably want your Dao Vua to be taller if anything. The grip that I think is ideal for this kind of cleaver involves your index and middle fingers extended in a v-shape down the outside of the blade, with your thumb on the inside. This gives a level of control which you can't really get on less tall cleavers, because your fingers would extend over the edge. And which, kinda counter-intuitively, makes smaller cleavers less easy to use.
Did that make sense...?
EDIT - So actually you might be a cleaver guy, but just need a
bigger one