Time for an update, and not a good one I fear. I checked every suggestion above and came up with no results to ID the problem. I sent in the oil for analysis and finally got it back. Not good news for a new engine with 700 miles on it.
Bearing metal is at a SIGNIFICANT LEVEL; Check air induction system (filters, housings, air intake, etc.) for source of abrasives (dirt). Abrasives (Silicon) are at a SIGNIFICANT LEVEL; Cylinder region metals (pistons, rings, liners etc.) are at a MODERATE LEVEL; FUEL DILUTION is at a MINOR LEVEL.
I had two friends under the truck while it was in the air on the lift and both said the noise is inside the pan. Doing the same thing, I agree. With the info above it's time to pull the engine and see what's going on. Since the girlfriend isn't up to the party we were going to tonight, I'll be ringing in the new year prepping the truck to yank its little heart out tomorrow. Many thanks for all the suggestions.
