IMO you have it off, spend the little extra and get the valve guides done. The valve stem seals are a bandaid fix for worn valve guides. I think it would be foolish not to unless they have been done in the last...20k miles.
my 2c

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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