Oil in spark plug well

I have a 2012 Tundra with 260k miles on it. Finally decided to change the plugs after 130k miles and the #3 cylinder is flooded with oil. Do I

1) assume bad spark plug o rings and replace them and valve cover gaskets or

2) look for something more sinister or

3) dry the well out, replace plug and coil and go about my day?

It’s been running fine, just a decrease in mileage from 14 to 10 mpg.

I’ve never replaced a valve cover gasket but I can see on youtube what a pain in the ass it’s going to be. My local shops are 6-8 weeks out on repairs. This is my farm truck now so no major long distance hauling any longer. Just need it for around town and on the ranch. What would you do?

 

Under the circumstances that you described, I would select option 1 and get to it when you find the time and ambition. And probably just do the one side, unless your feeling unusually ambitious...