I think that your best bet would be ebay or one of the auction sites. For the price you are looking to spend you will get a much better deal then purchasing new.

I upgraded from my PSE this year to a new Hoyt. I was just about to sell the PSE when I decided to keep it for just that reason. I try to pull it out every few weeks just to shoot a few arrows through it but it is such a difference now that I hope I never have to use it.