This is an awesome writeup. I just did the oil filter housing part of it. It went well, and I thought I'd add a few extra points:
- Shopvac is your friend for sucking the coolant out of the cavity behind the water pump impeller once you pull it off.
- No need to remove the AC bracket.
- For the PS pump, you only need to remove the 3 bolts that hold the pump to the bracket. The upper two bolts hold the bracket to the block.
- In my car (2011 Sedan) there's a 10mm hex bolt holding a small clamp around the lower power steering hose. It's hidden down below the pump, so it wasn't obvious why I couldn't swing the pump before I took it out.
- I removed the whole idler assembly (it's two bolts) on the AC side of the engine. Gave me a lot more space, and it was easy.