If you made every think then you have to change skeleton in Edytor or make your own there is no other way. But i can't help you with making skeleton. If you make your own skeleton you have to probably change animation too.

Ok. I try create my own skeleton, and next change it witch original warior skeleton, but I think that doesn't work.

Low poly axe. Texture from cgtextures.com.

fantastic work m8 keep it up