Ok thanks guys.

I am looking pretty positive towards it. I will go in and clean everything too....With the bad valve stem seals leaking oil into the cylinders for a good 20,000+ miles....there has gotta be some gunk sitting there. By the end I should have an awesome running engine with alot more power if everything goes smoothly.

Is there anything else that I should replace while I have the head off? Any other seals or gaskets?
Also, should I replace the timing chain at my miles? Seeing as I am doing this myself, I'm fine replacing the chain if you guys think it should be done.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k