I managed to get the cams out of the car tonight!. I'll be able to take a picture of each lifter. I have kind of narrowed it down to exhaust valve lifter around cylinder 3. Some show a slight discoloration, seem to have the marks of bore rotation, but a number of that have some scuffing.
The lifter that I suspected was bad did not appear to have any obvious mechanical issues. I'll have access to a solid vice tomorrow to try and depress them because I cannot at all with my hand.
Keep in mind my symptoms only appeared when the engine was hot. So from my research that is the sign of a lifter that has leakage.
