+1 on pulling the engine. I've pulled the pan with the engine in a couple of times on other vehicles. Good exercise in busting knuckles and frustration. Lowering the pan, dropping the oil pump, jacking the engine up, trying to get the gasket to stay in place while you wiggle the pan back in, getting the oil pump back in place and properly tightened (torqued), oil dripping on you and running down your arms into your arm pits. Doesn't take long to pull the engine, good time to freshen up the paint on it.