Help cover Lunas bladder stone medical bill

Luna is a 2 year old bully mix that has not been able to pee properly for a month. She’s been straining to pee, and has blood in her urine. We’ve run urine analysis, bacteria cultures, and X-rays under sedation. Turns out she has a bladder stone and uti. She has been on 3 different antibiotics so far, this last one was 150$. Before jumping into surgery to remove the stone, we are trying a special veterinarian diet, Royal canine so urinary. Hoping that the antibiotics, probiotics and special diet help her get the stone out on her own. Luna is a very special dog to me. After I lost my 10 year old Bella four years to ago I didn’t know if my heart would ever love another dog again, but Luna came into my life and I can’t imagine not having her! Any help at all is greatly appreciated.