Pulled my coils and plugs, what to do?

So I'm in the process of doing a B12 piston soak. This requires you to take both the coils and spark plugs out. Pictures are ordered 1234, 1 being the crank pully side. 3-4 coil and coil holes are rusty. Not in the picture, but I tried to wire brush some of it off. Didn't seem to do much. I can't really do anything about the holes. It's pretty deep and small. #3 was actually kinda difficult to get out. Even though #4 looked worse in the hole.

Then every single spark plug came out basically hand tight. I'm working on a cold engine. This terrifies me more than the coils! I was very particular about torquing this when I installed them 19,909 miles ago. I looked up the torque spec. I thought I stripped out #1, then backed it off 5lbs iirc, and the rest were fine.

Should my spark plugs even look like that? 3-4, particularly 4 were a bit oily as I sprayed some lube down it and blew it back out before taking them out.

My car has burned oil since I got it at 163k but changed them at 182k, now 202k. It's been getting worse. Hopefully the pictures rotate properly. IDK why they uploaded like that after I rotated them.

Thanks,
Higgins909

 

That's how they came out. Like I said 3 & 4 were a little extra oily because I sprayed some lube. Wiped 4 down because it was really wet. Maybe it can be both the piston rings and valve cover? I'll look better in a couple hours, but I didn't see any kind of leak on the outside of the gasket. I say both, because I've probably lost 4~ quarts in 2,500 miles. Most of that is because of my towing... I know it's not good for it..