Affiliate Marketing Secrets

What’s the difference between a cosmetic dermatologist and a plastic surgeon? Do the top people on the plastic surgeons side make more than the top cosmetic dermatologist? And where in California do they take home the most money? ( EXAMPLE: you make 500k a year but from taxes and stuff only take home 300k)

The object is a one piece, plastic “box”. It is however a niche product (I can’t give away my ideas).
Is there anywhere I could order such a model of somewhat firm plastic (approx 3in^3 material, dimensions of approx 6x4x8in) for less than 100 USD? If I go into production, where could I go to manufacture it in bigger volumes (maybe 100-1000 at a time) for max 2 dollars per unit?

I live in Columbus, Ohio and want to become a plastic surgeon…what is the usual salary or income…I would ollike to have my own clinic and have affiliates with non-profit organizations and hospitals