I forgot to tell everyone, and it's been a while now, so I forget which one of the above links it was. But I got assistance to spay Savannah. They paid for 50 dollars of the procedure, and it helped out a lot!
The only suggestion that I have is that you talk to your vet about this, tell them all the details, and be PREPARED to pay the full amount of surgery. Because with Savannah I had to pay the full amount, then the organization called in the next day and paid the 50, which I was reimbursed for. So just be prepared to pay for the full amount, and then get reimbursed.