Well, I finally did the conversion. I got the 9011's from RockAuto last fall but waited for some warm weather to do the conversion. The bulbs were Wagner but were marked Philips.
Thanks kelaog for all your work on this thread!
I did remove the grill; by watching youtubes I had a pretty good idea of what to expect but real life is different. Grill removal was easier than I thought it was going to be. I did tape the painted flat surface below the grill just in case there was a chance of scratching the paint and I think that's a good idea. I tried to see the white tab that locks the headlight assembly into place, the one behind the wheel well door but there was so much dirt in there that I couldn't see it at first. Once I figured out what it had to be, I was able to feel inside the fender well and pushed the tab up as required to release the headlight. On the second headlight, I never tried to look for it. I found it by feel; it is pretty unmistakable.
All of the bolts to remove the grill and headlight are 10mm. The door on the back of the projector headlight assembly covering the bulbs uses 6 - 8mm screws. To remove the bottom bolt on the headlight assembly, it helps if you have a very long extension so that your ratchet is above the grill.
After removing the two screws and releasing the latch in the wheel well, the projector headlight assembly will still be held into the truck by a ball and socket type clip. To remove the assembly, it must come straight forward. The assembly was more difficult to remove than I thought. Putting a trim tool between the headlight assembly and the fender is probably the best way to accomplish this but I didn't see that suggestion until I reread this thread this morning.
Because I have a 2016 Laramie, I replace all 4 9005's with 9011's. The change in night driving was impressive. On high beam, the light dispersion to the sides of the truck was excellent; much better than the 9005's I think. In my 15km test drive last night, I easily saw two deer on the sides of the highway that I'm not sure would have been as visible with the 9005's. My only complaint is how much brighter the reflective yellow highway signs are

almost blinding.
This upgrade was well worth the effort. Thanks for everyone's input and contributions! Broyd.