If you decide to eat her be sure to let the meat age (skinned and gutted, of
course) for a while in a cool place before cooking or preserving. This period is longer depending on the size and age of the animal (say 3-4 days in the refrigerator for a
chicken, up to a month in a meat cooler for
beef) and shorter if the temperature is warmer. Even in hot summer weather a plucked, cleaned
chicken benefits from a few hour's aging, out of the reach of flies. In ancient times this was called "hanging", and was sometimes done to excess, but the principle is that enzymes and beneficial microbes begin to work in the meat, tenderizing it and helping remove strong flavors. One guideline I read says that the time should allow the carcass to pass through the rigor mortis stage until limpness returns; which accounts nicely for the variability depending on size and temperature.
That said, your old goat may still be strong and tough. Curry is my default recipe for all such critters. Grinding into sausage or some such might be another option.