Aw poor chickie.. sadly that's way beyond my experience level of just treating splayed toes in chicks
I do have a more special needs quail that has an injury to her foot so I can say that its possible they *can* live a decent life as an indoor pet, depending on certain factors. I've known of another person who had a bobwhite quail that was missing it's leg from the hock joint down and it seemed like they were able to have a pretty normal life as an indoor pet.
I can't say much about amputation as I don't really have any training in vet med but only that I wouldn't try it at home as I'd be really worried that the risk of possible infection would be higher than any issues you might have currently leaving it as is. If you can't take her to a vet soon, I guess I'd just keep an eye on her for any signs of swelling or infection around the break area, especially if it looks red or any growths appear.
You could possibly take her in for a checkup and decline an xray or surgery if its out of budget but still get a prescription for something that might help her manage pain if that becomes an issue.
Some signs of chronic pain we noticed with our injured foot quail:
- Sitting around a lot, moving less than her buddies
- one or both wing are drooped down
- Favoring her foot, or pulling her foot up when at rest (they won't show this much unless the pain is bad, otherwise you might have to watch them from a distance and see if they do this when they think you're not watching them)
- weight loss from limited mobility affecting feeding (since we've had some health issues in our flock we've been weighing our quail once a week as it can be a helpful health indicator)
To help give an idea of costs, I'll share that when we took our bird in to the vet for her foot, the checkup cost $75 and she was prescribed Meloxicam to treat pain and inflammation, which was about $20-30 I think, but I do live in an expensive area so it may be less for you. I've also had Gabapentin prescribed for bird pain treatment and I think it was in the same price range. Outside of that I don't know much about OTC pain treatment for quail but if you want I can share the recommended dose we were given and our bird's weight if that would be helpful information for you.