NO.
Human body parts and organs should be donated only.
IMHO poor fellows that are in a waiting list for an organ transplantation must have a chance to survive.

EDIT: Also to stop this kind of sell activities that promote criminality, like kidnapping of inocent people that they will be killed in order to sell their organs in black market, a patient that needs an organ transplantation should not try to buy one. By buying an organ to save your life you condemn another innocent person to death. The selling or buying of organs is immoral, doesn't promote the spirit of humanity and is illegal in many countries.