What would Immanuel Kant think of organ sale?

I was just reading something about how a woman wanted to give her organ because it is good money, and she had serious debts. However, federal and state laws prohibit buying or selling of a human organ or tissue.

Thousands of people are waiting for organs, their lives would be saved… If you have an organ to save a life, then why can’t you give it? Hospitals, doctors, and drug companies all benefit-why not the donor?

I want to know what do your personal opinion is too, if you want to add. But I mainly want to challenge you to focus on Kant’s moral philosophy and his opinion on this particular subject.