Ember's Echocardiogram Fund

My sweet, little, aging fur-baby, Ember, has been coughing for over a month due to a collapsed trachea. The vet found some other concerning things after an x-ray, but more cannot be done until we get an echocardiogram. Since we've been told she's in the early stages of whatever is going on, we're going through with this so we can at least figure out how to alleviate her cough, but it is quite expensive. Any help would be much appreciated.