Help Sage back to health

THANKYOU TO THOSE WHO HAVE DONATED SO FAR!! I STILL NEED HELP TOWARDS FEEDING HER PLEASE PLEASE HELP US. I had to rehome my dog Sage back at the end of April due to unforeseen circumstances. Unfortunately I found her advertised on a Facebook group and didn’t hesitate in getting her back. My circumstances are better now but I need help with the cost of feeding her until her weight comes right. She has been totally neglected and abused 🥲 I thought I had found the perfect home prior but I guess people can be very manipulating and convincing. Sage will not be getting rehomed again. So due to her neglect she is down to 18kg and she should be at least 30kg. She has lost so much weight. All I need is help to feed her and vet costs which I can’t give a price as it’s all a give and take cost. Food side of things at an estimate will be around $500 a month as she can only eat raw food which isn’t cheap and vet at an estimate maybe another $500-600 as she went yesterday but will need to go back in 2 weeks to see if she has gained any weight.. Any help would be appreciated. UPDATE: Sage has since been to a vet thanks to a friend for paying and she is still underweight as I can’t feed her as much as she needs so come on animal lovers please please help us 😞 even if it’s $5