Damn that is a shame - can see a lot of time/money/effort went into your motor. Good thing no one was hurt, seriously.
Cars can be replaced...easily.
As you are injured, get yourself checked over and claim for the injuries accordingly - no need to be 'overly hurt' in nature at hospital.
As per advice above: Buy a Williams 1 when you are on the look out again. It really is like owning your very own piece of history :D
I will keep my eye out for a new project thread with a freshly sorted Williams 1 chassis