If you are looking for a shape as a shape creator I can tell you that you would not be able to get this made due to limitation of the system. If you are looking for mesh avatar, I do not believe anyone would do once off custom work for you as it would take a very long time to make it and you would simply not be able to afford asking price. Best suggestion I got for you is to find someone who is interested in making anime mesh avatars and see if you can give them a suggestion to make this one. The disadvantage of mesh avatars is that you can not change skin, nor will you be individual/original as others would be able to purchase it as well.
Alternatively, get custom shape (not mesh shape) which would give you individual look you seek, but I do not believe results would be near close to what you are expecting.
Good luck!