I've done a good part of it, in sections, over the years.
The biggest single chunk was in the middle, from Bryant Col to the Tooth. We took a rope but never needed it. We went up the west ridge/side of Bryant from the col. A little loose at first with a weird north side traverse on roots and stuff to the top of Bryant. A scramble down and then hike up through thick trees got us to the top of Hemlock. Down the south side got us to a drop above the notch between Hemlock and the Tooth. We were going to break out the rope to rap into the notch, but Kevin found a 4th class way down to the west. We reached the notch, up the north ridge of the Tooth and then we soloed down the south face.
I've traversed from the Tooth along the ridge toward Denny, but dropped into the bowl near Denny and down lower International instead of tagging the summit due to the late hour. This is a fun scramble with no real exposure or technical issues.
From the summit of Chair Peak, I have traversed south to a point where I could contour around the backside of the Chair Peak Bowl, ending up dropping down into the entrance to the bowl. This was mostly on snow, but it was never very steep or exposed. As I remember, the extension to Bryant Col from where we turned east looked casual.
I'm guessing the crux would be getting from Kaleetan to Chair.