P.S humans life is worth 100,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 $$$$ it's not worth killing someone over 20cents HAHA:
:D
Nonsense from a pratical overview.
Human life's worth may range from a few cents to hundred of thousands. The point is that killing him won't pay the debtor unless he decides to harvest his organs and sell them to black market. Rather nasty.
About the arbitration I'm pretty sure you can charge legal interests + legal/collecting fees + eventual goods devaluation. IF the debtor has means to repay and/or property to attack don't settle for the arbitration note and hit harder.
What you can't charge to the debtor is the price of your lawyer... unless it is mandatory by law that you use one just don't.
For example here in Italy you don't need one when you go to the small claims court.