Minnies Umbilical Hernia and Stomch Surgery

Minnie is my 5 month old beautiful boy and he is in desperate need of surgery in order to sort out a rather larger Hernia. The muscle walls of his stomach have not closed properly and so his insides are only held in by his skin, meaning that one bad cut in a fight and all of insides would become outsides. He needs this surgery but we can't afford the costs involved. Any little bit would be apreciated and very welcome! Thank you