I just did an 06 KIA Sedona valve cover gasket set, spark plugs, and alternator. The oil was weeping onto the alternator which causes it to fail.
It is a serious job. It took me like 8 hours and I am pretty good, plus friends gave me extra hands, so be prepared. The wire harnesses are kind of a pain, but if you can't figure one out, look elsewhere on the vehicle for an example that is easier to get to.
If you're an intermediate DIY mechanic, I encourage you to do this job, but BE PATIENT, commit to acheiving it, and take pictures along the way! You will work it out one step at a time.