There are two ways of tackling the problems you have. Depends on how much you want to get involved with preventative maintenance. I assume you do your own work (any weekend mechanic with some common sense and patience can do these jobs).
Option 1: replace CCV with manifold still on car. Not that difficult as people make it out to be. Just go slowly, and take care not to rush and risk rounding out a head. It***8217;s definitely doable (this was the first thing I ever fixed on my BMW). There***8217;s a very good DIY somewhere on here. Independently, replace the water pump on the front of the engine. Not a difficult task again, but time consuming.
Pros: Can do the CCV one day, and then the water pump another day. Unrelated jobs. Easier on the wallet. Fixes the problems at hand.
Cons: doesn***8217;t take care of preventative maintenance. Slightly difficult work position for CCV.
Option 2: remove intake manifold. Change CCV, water pump, and valley pan gasket all at once.
Pros: Preventative maintenance all set. Easier to access certain components (CCV, water pump, coolant pipes under manifold).
Cons: Can get pricey with the cost of all the manifold gaskets, rear water manifold gaskets, coolant pipe o-rings (under manifold), etc. Job will be more time consuming and the car might be down for 2 days or more, depending on how quickly you work. I prefer to go slow as a mistake will only make you have to tear everything apart again.
Weigh the options, make a choice. You should be fine either way.