medical book

[StephA]

I am starting on a medical book which will contain a picture of my face on every page taken over many years. The idea is to be able to flip through the pages and see wrinkles and other imperfections slowly appear as I age. I will also make books for face shots at different angles and body shots. I don't know much about photography so here are some questions: *What would be a good ccamera for this if I want a digital SLR and my budget is less than $2000 (for camera)? *What kind of lens? *What focal length should the lens be set at for both face and body shots? *What's an appropriate distance between the camera and object for minimal distortion of image? *What's a good lighting setup for best clarity of facial or body details (but I also don't want to over exaggerate shadows or wrinkles)? Thank you for you input!