From the situation you describe, there is the potential that your defendant is "judgment proof." Meaning, no matter what $$ amount is awarded, it can't be collected because the person who assaulted you does not have the ability to pay it. Basically, you get an award, your defendant doesn't pay, you petition for award enforcement, and the defendant files for bankruptcy, thereby nullifying your unsecured claim. This is the reason the lawyers you contacted are unwilling to take your case...alot of work with no payoff.
In reference to the court date, most likely the judge presiding over your hearing will want to review the findings of the arbitrator, have both sides present any arguments regarding the sufficiency of the award and the fairness of the process. In addition, while your arbitration was mandatory, it does not mean that both sides have to accept the verdict, either side can still appeal. However, depending on which state your case is in, if you appeal the verdict and lose you may be required to pay the attorney fees and court costs of the opposing party.
Anyway, your best bet would be to inquire at a legal aid organization to see if they will take the case. Unfortunately, the process may take some time. A lot of legal aid organizations have legal hot lines you can call for free. Look in the phone book or do a web search. Good luck.