Well, it's always a matter of being able to demonstrate unencumbered clear title to the asset one is offering for sale. After all, you can only sell your liver once and not to a succession of people like in some cheesy Florida land swindle.
But in principle I like the idea. Kind of a kidney-carbon offset thingy.
We can bundle the principal and interest streams separately and sell them to CALPERS. I'm in!
I refuse to donate any of my organs unless my family is compensated by a hefty sum.