I'm happy to say that Hal is back on the road. Along with the new alternator it needed a new fuel pump.
To be absolutely sure my starting problem was the pump I jumpered the fuel pump relay. This provides power to the pump without running the engine.

This is the connector for the fuel pump that's located under the van in the area of the fill hose.

With the jumper in place I would plug this in and out and listen. Could hear the pump "thump" but not run. After doing this a few times the pump would start to run. Time for a new pump.
I bought this Delphi fuel pump at NAPA. They didn't have it in stock so had to order it a day ahead of time. The pump was around $150. Need a new strainer along with the pump. With taxes it all came to $191.

The pump included a new fuel pump assembly gasket, pump sleeve, short length of hose with clamps and adapter plug.
I'd removed the fuel pump assembly once before which was the good news. The bad news was I'd laid flooring in the van since then over the access hatchway. So had to choose the lesser of two evils. Either remove everything and or do some digging. Decided to dig.
This is the after picture. Used a angle grinder with a cutting wheel to do the deed. Could have been a bit more careful but nothing I can't fix.

Now check this out. I'm taking this as a sign I'm living right. Notice the edge of the hatch. It is just shy of being under the house battery rack. If that had been a couple of inches in the other direction this job would have gotten a lot harder. I'd love to say I did that on purpose but it's pure happenstance.

Here's the view after I removed the floor hatch. The conduit for the kitchen power is running across the top of the fuel pump assembly. I was able to just move that out of the way.

Removed the fuel pump assembly and brought it to the work bench. Here's the original fuel pump. First thing remove the bracket the holds the pump.

Cut the rubber hose that connects the top of the pump to the assembly and slide out the pump. It fits into that "U" shape at the bottom of the assembly.

Unplug the old pump and plug in the new adapter. Make sure the plug locks in place.

Remove the old hose from the metal outlet line. Slide the new pump into it's included sleeve. Mount the pump into the assembly and use that to measure the new hose. It will need to be trimmed before installation. Here I've already cut the hose and installed one of the screw hose clamps.

Install the new strainer on the bottom of the pump. I almost messed up this step by not pushing the strainer on far enough. There is a small plastic post on the bottom of the pump that goes into a locking ring on the strainer. The locking ring should be pushed down on the post till it bottoms out. I needed a small screwdriver but be careful where you push. Plug the pump into the adapter.

All tightened down and ready to go.

Installed the new pump back in the van and it started right up. Finally could take my victory lap. Much happiness ensued.
Back to repairing the floor. First the foam layer.

Then the wood layer.

Hole? What hole?

Gotta love the adhesive backed tile squares. That's it.