Brittle hoses under Intake manifold

[Wikedjuggalo]

So, this all started when I wanted to replace the PCV valve for a variety of reasons. Removing the hose that goes off the top left side of the throttle body that goes under the black cover of PCV valve.

See Picture here

I had to remove the intake manifold at that rate, if it was so brittle it snapped off. That was fun, but I finally got it off and removed

See here
And Here

But back to why I posted this. What else should I replace while I have the intake manifold off? At this rate taking time to order parts and what not doesn't really matter, rather have it working right then rush and have to do this again.

Should I order the hoses from Subaru or replace them with regular vacuum lines? If you look closely in the picture you can see pretty much every hose has cracked.