Resolution:
There was 120v at J7/9. I checked continuity to the relay, and it was good. Put the relay back on, nothing. Pulled off relay, and checked voltage through it, 120v.
Put cheater cord w/ hard start back on & compressor started up. Put fridge back together & tried again. Nothing. Click...Click. Felt compressor, and it was jolting ever so slightly w/ every click.
Reasoned that the compressor was on its way out. Offered hardstart option to customer. Customer declined hardstart or new compressor.
Bye Bye fridge.
This is the second time in two weeks that I've had a wacky compressor. Windings check out, no grounding, starts w/ hardstart, not w/ oem relay. Frustrating. Gotta start using a cheater cord w/ cheap generic relay.