Replacing the gallery gaskets next week, question about timing components to replace

[rclarkbow]

Gallery Gaskets on my 2012

This post is a follow up to my first post linked above.

So I'm at 150k miles on my 2012 370z and I had started to worry about gallery gaskets issue causing low oil pressure.

This led be to installing the AEM 150psi oil pressure gauge. After installing, my idle oil psi at 180 degrees F was roughly 15-17, dropping as low as 13psi.

As this is on the low side, I've already ordered the gaskets kit from EPS tuning.

Other replacement parts I'm considering from concept z performance website:

Probably:
HRTMNGCVR-KT - timing cover rebuild kit
B1010-JK20A water pump
13070-EY00A - timing chain tensioner

Possibly:
13028-JK20A - timing chain

Maybe:
Also looking at replacing the multiple timing guides and potentially the oil pump, but the oil pump is quite expensive compared to the rest.

What do you guys think? I'm at 150k now and want to keep this car forever. Is it worth doing the oil pump for an extra $350? Is the timing chain itself fine if I do the tensioners and / or guides? What would you do.

I'm paying a shop for labor who has quoted me 9 hours for just the gallery gaskets, and I can't imagine the other parts adding much to the labor hours since they'll be in there anyway.

Which parts would you also install in addition to gallery gaskets if you were in my shoes?