Intake Manifold and EGR Cleaning/Replacement - How hard is it really?

Got it all put back together tonight, took about 3 hours to get the new water pump and thermostat in, oil catch can, intake, etc. etc. and all buttoned up.

I am paranoid I forgot something since there are so many places you can forget something, but so far, no massive coolant leaks, no CEL's, and I was able to drive it home from where I was working on it without a hitch! (About a 25min drive, and the coolant level was stable when I arrived home).

Had a slight bit of rattle/knock when I had it in maintenance mode that sketched me out, but that may have either been due to it having sat for so long this week, or the coolant working through the system, or the fact I forgot to hook up the air hose to the MAF at first lol.

Seems to have stopped that knocking, so, hoping it was just coincidental and nothing I did wrong haha. I'm not sure if it's placebo but it does seem smoother when switching between EV and the ICE kicking in, not as much of a jolt which is great!

Thank you to all for your help! I couldn't have done it without the guidance and suggestions you provided! I have expanded my skillset and saved a few thousand in labor costs

Will followup with any updates if there are any (but hopefully no news will be good news haha)

Thank you again