Hi
I am bidding just because I can help you with details, actually I am not going to work on it like this.
I have experience in this domain so I can tell you that, there are few points you need to FIX
1) How close resemblance in 3d model to your actual body do you want? Results may vary
depending on type of modeling technique.
2) Just telling few dimensions will give a approximate 3d model.
3) Do you want the face to look like your , (do I need to model face as well)
4) Do u need the apparel fabric to be modeled in details such that the model can be used for annihilation , like wrinkling or waving in air effect Or just the model for 360 deg rotation view
If you can answer the details above I can give u a better quote.
If you have any queries you can call me on +91-9910786363
Aditya
Delhi, India