Such a sad story. I am so sorry about Aeris. And now you're dealing with other problems. I don't know where you're located, but my vet charges $350 for an echo-cardiogram. Raiden has a heart murmur as well and it's not a serious one, thank goodness. My vet also works with a company that allows you to pay off your bill in installments. There should be no reason for you to delay seeking the treatment for Sasuke. Especially if there is the potential to find fluid in the lungs, which could eventually kill him. You've got a very long way to go with your fundraiser and the fact is Sasuke may not have that long to live. Maybe I'm fortunate in having a vet who cares more about the pet than the money. They have done a lot of free work to save an animal's life and then they will accept donations to help reimburse them. But they've never turned someone down because they can't pay the bill up front.

I really hope things work out for you.