Nick,
I fully understand your frustration, but trust me, I have seen much worse happen to guys that has literally led to their financial ruin! As noted by the other members, you at least have your car back, so let's see some pictures and figure out what needs to be done, what your current budget looks like (whether you have enough funds to proceed now or need to save up) and then we can explore how to get the right body guy at the right price involved to complete the job.