Get a friend to help. Pull it out of the yard with a chain and bump start it when you get it on the pavement. It sounds like you could need to clean and check the connections on the battery. Check all the cables even the wire running to the starter could be loose. If it starts when you pull it...
Are you going to make Lumpia with it. I don't think there are any commercial sources for dog in the US. You will have to kill it and grill it your self. Dogs clean just like any other small mammal. Open the body cavity and remove the innards careful not to cut into the intestines or the bladder.