It never should become a commercial enterprise, because it will inevitably attract criminals like Shemtov, who are motivated primarily by monetary gain, not by the wellbeing of the recipient or the donor.
If there is a structural shortage of donor organs in Israel, it will need to be addressed by enforcing a change in culture, like:
1. Those patients who have volunteered to donate their own organs or tissues, should have preference over those patients, who refuse to donate any of their own organs or tissues.
2. If a person dies, and does not carry a donor card, then consent for organ or tissue donation should be assumed. So it is yes, unless.... rather than no.
Religious arguments against donor donation are hypocritical if the religious person who does not want to donate organs or tissues is prepared to receive them from others when the hour of need arises. Religious people who refuse to donate should follow logic: don't accept any donor organ or tissues either. Otherwise you are a hypocrite, prepared to pay a lot of money for the kidney of some poor bastard in a slum somewhere in Asia or Eastern Europe.