Custom graphic portrait / avatar Caricature (for 3 people)

I am looking for someone to make a graphical representation / cartoon-ish portrait of my wife, daughter and myself. I will of course supply photos to use in making the images. I will want several sizes ranging from large to small for each person, plus the same several sizes in a group "family portrait" style. So, there will be around 4 sizes of 4 separate illustrations. Here is a link to an example that I have found online of the sort of thing I am looking for. These will be used for a greeting card, plus avatars on forums, etc. The following is not my work, not my face, not owned by me, etc. [login to view URL] I have a designer in mind that I have used before and will be inviting him to bid on this project. Since this is for a personal project (nothing to be gained from it - except coolness!) the budget shall be low.