Well, since I know you are all on the edge of your seat wondering "what happened to Phil and his family?"
After renting a pickup to get on to Zion, Bishop Ford said they would call to give me status of the van during the week. Never did receive a call, so en-route back to Bishop this Friday I called them and they said it was still not repaired. I wasn't happy to say the least. When I talked to them again in Long Pine, they reported it was repaired.
It wasn't the alternator as I initially suspected. As I have discovered, and as JM suggested, Oil pressure is directly related to fuel supply in these diesels. They ended up replacing the IPR (Injection Pressure Regulator), High Pressure Oil Pump and repaired the "snap to connect connector" (whatever that is). Initial code was P2290 - ICP (Injection Control Pressure) to low. They also referenced TSB's 05-12-03 and 05-12-3 in the repair.
I've learned more about the oil system in this Diesel at the following link if anyone is interested.
As for Bishop Ford, I am less than impressed. They did nothing to keep me informed of the status of the repair through the week. They were well aware that I was on a trip with my wife and two kids and my vehicle availability was crucial (aside from the fact I just really wanted my SMB for this trip). They took no care not to make a mess in the vehicle. The carpet in front of the dog house has a big oily stain from the technicians oil covered shoes, oil was spilled on the carpet at the passenger seat floor, oil was spilled on the passenger door panel draining into the door map holder (or what ever you call the door storage) draining out the bottom of the door panel to the outside, the passenger grab handle had bad oily hand prints on it, and the under side of the engine, bell housing and miscellaneous components had residual oil all over. I know the underside was clean prior to the work as I had just had an oil leak repaired and had been monitoring it to make sure it wasn't leaking.
We were going to head to Eureka dunes Saturday night, but when I noticed all the oil underneath the van, I had no confidence that there wouldn't be other problems, so we just headed home.
Zion was spectacular. Biking Gooseberry Mesa was spectacular. Thanksgiving turkey and being with family was great. The trip there and back left a little to be desired. On the plus side, I now understand the engine a little better!
Thanks to those that offered suggestions through this.