and also we have both left all the accents of their names (Ghân-Buri-Ghân and Tùrin)
You've got it, but I'm being too cryptic again.
Going back to the Merry reference I made earlier, just after Elfhelm tells him to Pack yourself up, Master Bag, he sees G-B-G and is reminded of the Pukel-men.
Here was one of the old imagess brought to life, or maybe a creature descended in true line through the endless years from the models used by the forgotten craftsmen long ago.
Ergo, the wild men of the woods are descended from the Pukel men as Turin is descended in direct line from Marach, Beor etc.
And then as you say, the wild man of the woods bit.
Sorry for wasting everyone's time!
Take my twisted bell Grim, and bring the game back to life.