Yeah, the engine out here could look like that... but it's pretty dirty. Going to need to be sand blasted and/or pressure washed with tsome heavy degreasing. The valve cover had been leaking for quite awhile.
I didn't even think about the rear main seal and timing chain... I mean, I didn't notice any leaking from the rear main before I pulled it (just the valve cover), and it ran fine... so my guess is they are both fine... but just like they said... if you really want to prevent a hassle later on down the road... replace the seal and the timing chain as well.
I mean, really, you can deal with the seal leak... it's just be dirty under there... and it doesn't look pretty when you're parked... not to mention all the oil you'll be using if the seal goes. But mechanically, it should function just fine. Now, the timing chain... if it goes bad - you HAVE to replace it.
So idk man... it's whatever you're willing to risk. And from there, it's what's more important. Then what's the biggest hassle.
The timing chain is a hassle if the engine is in, but you can get to it later if need be. The rear main seal... I've never replaced one, but I'd think you'd have to pull the engine to replace that one... and Eagles are notorius for it. Soooo... you do the math man.
And again, if there's anything you'd like me to have done to the engine before you pick it up - let me know. As long as it's not something that's going to take an entire day, you don't have to worry about labor... just cover whatever supplies I may need. (IE valve cover, seal, timing chain, sandblasting/painting)
Keep me posted man!