I'm 1100 miles from the boat and won't be back for a few weeks. I think my issue is that I didn't crank long enough to let the injection pump self bleed past the pump to the injectors. Once I got fuel to the injection pump and it didn't immediately fire up, I assumed the injectors were airlocked and I needed to bleed them.
So I pulled out the lever, thinking I was decompressing for easier cranking, and cracked open the lines at the injectors. Since I had the handle pulled out while cranking, I got nothing. I was shutting off fuel, not relieving compression.
...at that point, I had to give up and head for the airport to come home.
yes, I definitely need to make sure the screen in the pickup tube is gone. The pickup tube is pretty solidly attached to the 90 degree fitting and I could not get it apart with the tools at hand, so I just jammed it as hard as I could with a long piece of wire hoping to destroy it or poke a hole in it. I was at anchor more than 10 miles from my slip at the time.
Likewise with the tank cleaning, I can do that later as well. But since I have free flow of fuel I'll know the tank needs cleaned pretty soon when my racor clogs up again, either with snot from the tank, or pieces of the pickup screen I demolished by jamming it with the wire!
Thanks for all the help and info, I'll continue the thread in a few weeks when I get back to the boat and finish solving the problem.