"it ran poorly for about two minutes then quit. Rocked at idle, light nailing from somewhere, then just shut off. Now won't start again. I saw some light fuel coming out of the nut on the spin-on filter, so I guess it was not tight all the way."

My experience ( see sig below) has been that sometimes it can take a long while for air to be removed.
I can remember putting 1/2 a can of WD40 down the throat of my old 300D once after doing work on the injector system just to get it to run on its own. This was after pressure bleeding the fuel system.
There is probably air pockets in the injector hard lines at high points.
At idle the fuel flow is not great enough to push them out, it just dribbles past.
There may also be fuel quality problems as the car has sat for a while.
It is unlikely that the injectors are causing it to not continue to run.
It is clear there are still leaks in the system (see quote above), probably air leaks in as well as fuel leaks out.
Best get it to start again, keep the revs up, take it for a drive if you can & see what its like once it has warmed up.

__________________
Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving