First off, I'm sorry for your loss. Secondly, I think it's important to state that it was never very likely that someone could diagnose this sort of injury or advise you on the proper treatment over the internet. That often the case with this sort of injury and the complications it can lead to.
I would generally say ''If you can't afford to take your animal to the vet, you can't afford to keep the animal in question". I'm finding that idea is frowned upon these days.
In light of that, I'll reiterate the sentiments voiced by others about improving your own knowledge about the captive treatment of your animals should they become ill or injured. If you know you can't pay for an expert to treat your animals, then you need to (essentially) become one. I don't think anyone can disagree that you simply can't take a lot of advice from forums or other internet sources as anything but hearsay and at best circumstantial medicine. For this reason, you need to find authoritative resources, and use them to better equip yourself for the practice.
That, or think harder about what's best for the animals. Find the animals homes with people who can afford to give them proper care.
Josh