I don't think there would be, especially for children. What governs the availability of organs is a variety of factors not the least of which, a person (for many organs) has to die and die in such a way that the organ isn't damaged and can be quickly retrieved and is not diseased.
This is beside the point.
You're overlooking competition and choice, the only factors that drive costs down.
How exactly is it "beside the point"?
Competition and choice wouldn't work in organ transplants because you are dealing with a rare commodity that will remain rare due to it's nature and choice is always going to be limited by the "beside the points".
Comrade? You from the former Soviet Union or something?
Are we getting into Libertarian talking points here?
Do you have any proof to support there would be a huge increase in available organs? Remember, most of the time they have to die first and profit becomes far less of an interest.
Like I said, do you have any evidence to support this massive increase in availability? And, that that availability would become available as equitably as it is now?
The system we have now is the fairest and it's not determined by either corporate executives or government bureaucrats.
Which results in this girl's death. But hey, you and your central planners know what's best for everyone, right? Pass.
If this girl doesn't die, it would be someone else.