I am changing the interior from Palomino to Black. I have the Dash (and everything else) removed from my 87 300SDL w/252k miles. Does anyone have any suggestions as to what I should reaplace now while it is easier?

I have already replaced the ignition switch.

Any ideas of how long those pink vacuum actuators for the vents should last?

I saw that someone replaced their A/C expansion valve with some effort. Should I hit that one while I am in here?

Thanks!