Haribol Friends

I have just received some marble Nitai Gaur Deities from India, they are painted very nicely on the front but for some strange reason the painting is not all around the back such as Their undergarements. Also the marble doesnt seem to be glazed on the back.
1)Is enamel model paint good to use on marble?
2)How can i glaze the back...how about clear gloss model paint?

3)Any idea where i can get nice hair for my Deites, they are 12"

Thanks

Dave