I’m 14 4E, 6E is some. In Canada I can’t find a single pair of trail runners big and wide enough so wear boots. Over the years, I’ve tried on everything you could imagine, all the Keens, Merrells, Solomons, Columbias, Oboz etc. Pretty much they’re all too narrow for me mid foot and or baby toe. After breaking a bone in my foot that never quite healed properly in Solomon Quest Primes, I’ll never wear Solomons again.
The only thing that I found that is wide enough for me is the Lowa Renegade in wide size. They’re also stout and surprisingly light for a robust boot (same weight as the Quests). They’re Goretex and have been waterproof for me. Keep them clean and air them out and I can wear them in the highest heat. Being GTX boots, I do the old bread bag trick to dry them out.
If you don’t need them wide mid foot, you might get away with the Keen Targhee (too tight mid foot for me but OK in toe box IIRC) but they’re less supportive than the Lowas.
I’d go right to Lowa Renegade Wides. They seem to be the best bet to meet all your stated needs. Upsize half a size if you need to. Grip is decent. Wear has been excellent though I’m burning through my second pair. I did have one boot start to delam at the toe after 100s of kms but sent them to Lowa Canada who repaired them for free and am putting many more 100s of kms on them.
I do a lot of bushwacking and cliff scrambling and have never damaged the upper in any way.