[03rangiemark]

I've done upper timing covers and cam shaft solenoid seals, not too hard to do with the fan off.
The valley pan gasket doesn't sound hard from what I've read.
Did your mech specify the upper or lower covers?
I haven't heard of leaks from the lower cover gaskets,

Are you doing the LOWER timing chain cover gasket, or just the uppers? I did the uppers. You can do the guides without any special tools, I saw a DIY on a BMW. He held the chains in place using zip ties. Do some googling!

The NRV's sit behind the solenoids, so replacing the solenoids is a different process.

Dillinger, did you do the chain guides without removing the lower covers?