Planning a "mayor" tune-up

[titodj]

I got me a 2005, 3.0i with 110k

I can see that the oil filter housing gasket is leaking, and the oil has "dripped" on top of the alternator, so it looks covered by oil.


The plan is to replace the gasket, but at the same time I'm planning to:

1- Pressure clean the injectors
2- Replace spark plugs
3- Replace valve cover gasket
4- Replace belts and tensioneers
5- Replace the upper oxygen sensors
6- Any vacuum line that looks damaged

(*** New additions as per suggestions. )

7- CCV and Vanos oil line and gaskets
8- Oil pressure switch
9- Water pump and thermostat
10- Coolant expansion tank and thermostat
11- Manifold gasket
12- Disa valve upgrade kit (I was clueless about this potential problem)


Should I replace the water pump and thermostat too?
How can I clean the alternator without damage it?
What else should I address while I have everything apart?

Thank you for your Ideas and comments !