dog emergency

This morning 3 of my dogs got attacked by a porcupine and 2 out of three are doing okay we have gotten majority out but we can longer pull them out it’s causing them too much pain the 3rd one on the other hand has over 100  quills stuck inside and outside of his mouth and all over his face.. we financially don’t have the money for this procedure it costs anywhere from $600-$1000  and our last option is to have him euthanized anything that can prevent that from happening is greatly appreciated. Thank you so much.