Unfortunately this won't work. Visas body model does not have a neck, it is part of her head model. Using any other head with it will leave that head floating above the body. I wanted this too but it would require modeling, and I doubt it can be done with the current limitations on 3d modeling.
There are 10 types of people in the world.
Those who understand binary and those who don't.
I'm not too fat. I'm alive aren't I?