Rocco Vet Help

My beautiful little boy, Rocco has become very sick. He currently is paralyzed with some sort of spinal issue. It happened quick. Within 48 hours he went from a loving , always happy and playful dog to pulling himself around while his back legs drag behind him. He's in constant pain. As most pet owners know, veterinary care is extremely expensive. He needs X-rays and possible surgery. He's on steroids and pain killers now but needs to get more care to pin point the problem before he has permanent nerve damage and won't be able to use his legs anymore.