I had thought of the location also but my concern was oil pressure drop. A oversized line would reduce headloss but I would still put a secondary pressure gauge inline to monitor the pressure near the return location on the motor. Yes you could come off a oil filter adapter, but what adapter? You do it first, run a day in hot weather and report back. If everything goes well, then we will follow. There has to be a leader, LOL!
rocmoc n AZ/Mexico