Sorry to hear about Monty, hope it's not serious. speaking as a 'veteran' you can help him up the steps by putting a towel/sheet under him right in front of his back legs and just help lift him. Lacey only weighs 70lbs but I have to pick her up too to get her to the vet, she can't jump in the truck. I sure couldn't lift 140lbs. My Lacey just had two ligament surgeries on her leg, that's where the info came from. Monty will be in my thoughts and prayers also and don't worry God can handle alot of prayers!