Your pics show oil near the timing chain tensioner --- a common source for oil leaks. A whole lot cheaper to fix. Maybe a bit painful to get at, but it can be done.
All I can suggest then, is to take things apart to find out where the oil is coming from. With luck, the solution will be obvious, and easy --- loose valve cover screws? None of the hoses in that area should have oil in them, so a broken / loose hose connection indicates a bigger problem.
