Milk Kanata Alternative face: potential worth?

Sorry if this isn't the right section for this question!

I've posted to a handful of Smartdoll groups on FB, but thought it would be wise to ask here, too. 

My favorite doll, Kasumi, has a milk Kanata Alternative (smiling face) body and head, and I've realized I want to reshell her soon in a body that suits her (and my collection) better. I have no idea what to price it at, but I do know her head was very limited and that milk is no longer in production. I also have milk elf ears, a body suit, and some clothes. She doesn't have her original eyes or wig. 

If anyone has any guidance, I'd appreciate it! 

I have no ideas about Smart Doll worth, but I AM curious about your customization plans! Is she going to become a DD?