Just give that oil line a crank with a wrench to see if it will stop the leak.Need to hold the wrench on the other side of the bolt for reinforcement while torqing.My mechanic I use for heavy jobs is in Houston ,dont no if that helps ,hes about $50 an hr and honest .I recommend him with out hesitation since the time he owned a shop next to my Business .I now a little but he has seen alot more under the hood tech and diagnoses jobs than I have.You get pretty good when your demand for performance is a 9 to 5 job.