Harley’s colic treatment and surgery

Katie and I were traveling to Gillette, Wyoming from Alaska for national high school rodeo finals where katie and Harley, Katies heart horse, would compete in barrels. Harley started to show signs of colic near Lewistown, MT on Wed and we were able to get her to Montana Equine in Billings where she is getting excellent care for impaction but has not passed anything on her own in over 24 hours. Harley is fighting but she needs more help and surgery is the next step. Harley is an 8 year old mare and is headed to college in Colorado with katie where they will compete on the college rodeo team. We are already looking at close to 4K in treatments and surgery will cost the most. Every penny will be used to get Harley the treatment she needs. Thank you all in advance.