The oil is probably on the road where it rolled not in the cyls. won't hurt to make sure though. When you hook the battery up just make sure to have a fire extingusher close by just in case. Other than that fire that sucker up. Once you establish that it runs don't forget to check the trans and diffs for oil before trying to drive it anywhere. You basically want to check all fluids, once you establish that it still runs. Just make sure you have engine oil in it to start it.