king of fighter > mai shiranui's head

we have a girl figure here, her name is mai shiranui from the video game king of fighter. but we are not happy with the head and would like to replace it with something else. please check upon the attachment. the figure is originally based on the picture on the left, so we would like to retain the orientation of the head, but applying the head model from the middle picture, and finally, since the scene shouldn't be that much 'happy', we would like to close her mouth, make it something like the picture on the right (we might slightly modify the mouth shape when we get close to finish. as you see in the figure, we already have hair of the figure set, so hair is not require, we will only need the head. before saying reward me with the project, please, please do let me know the cost you will need for this project.