Magos can't re wrap (re map the texture), you will need to choose between two option
1. Vertex modify, allow you to modify the vertex, and re mapping a model
2. Mdlvis, allowing you to create new model based on geomerge, even creating custom attachment point, and animation merged part, eg: illidan's wing at dreadlord's wing place, and animated like dreadlord's wings
Also mdlvis extend the usage of the uv map (re map), you can even Chop the vertex part to some parts (eg: one 3d part become 6 or more 2d part) that can easily remapped
And also you can animating a model, not only using native warcraft3's animation
See the jumbo jet?
I make it using mdlvis