Multi-cylinder misfire, rough idle, stalling...

[TXDavesX5]

Hi folks; I'm here to challenge your online diagnostic abilities.

What it is: Rough idle, low/no power, hesitation, stalling
Codes: Misfire Detected all cylinders except #4, Cylinder Deactivation System (Bank 2); codes pulled from Bosch Enhanced ODB I & II Scanner at local parts store
MIL: Engine light, static and/or flashing

E70 N62 108k miles. I've had none of these issues before now except a rough idle at startup about 2-3 months ago. Stopped and restarted, then it was fine.

What it is not: spark plugs (replaced at 103k), coil packs (replaced yesterday), CCV/pressure regulating valve (replaced yesterday), battery (new Dec 16), oil leak (nothing obvious, gaskets/seals replaced at 103k)

I'm wondering if I may have a fuel pump issue. Can someone suggest another likely candidate part for R&R? Or something else to consider/check?

Thanks in advance for your comments.