Aura needs an urgent hip replacement

Aura has significant hip dysplasia in both hips with the right being the worst. Arthristis has already started building up and she is only 1 year old. The cheapest quote is $8500 per leg. She will need the right done first with the left done another year down the track.  This can only be done through a specialist vet which are far and few between. QVS have asked for $4000 deposit to begin surgery and the remainder within 30 days of surgery. Aura has significant hip dysplasia and if she could get just her femeral head done, that would be only 1600, unfortunately this is not an option for Aura and has to have a Total Hip Replacement. The second hip replacement I am actively trying to put myself in a position to pay for myself. For this first Total hip replacement, I cannot even come up with this sort of money even if it was for myself or my kids as I have been a fulltime uni student for 4 years, I am solely raising 2 special needs kids ages 11 and 17, my son's Dad is deceased, I am a long term tenant in a private real estate rental that attracts high rent (3 quarters of my weekly income to be exact), I have been a volunteer animal rescue and carer for 8 years now and most funds to help animals comes from my own pocket which is never ending.  I now need help for Aura to have a chance at a decent life. She nearly died as a tiny pup when she first came into rescue when we think she may have reacticed to a vaccine. The rescue I adopted her from went above and beyond to save her and all the more reason I am hoping I can provide that same level of care. This poor sweetest most gentle and loving soul has hidden her pain well and deserves to walk pain free. She is an absolute asset for helping rehabiliate the foster cats and dogs that come in. She has a unique way with humans also providing confort even when people didn't realise they need it. I have ptsd and anxiety and she is very calming for me. She is an amazing soul that deserves the best. She needs help too though. Can you please help me make that happen for her? Any and every amount big or small helps to get closer to achieving this for her. I doubt I will even come close to the goal but I have to atleast try. Thankyou so much xxx