I'm anxious to hear how this goes!
I'm planning a 100+ mile hike, either through there but extending it on up toward Crede, or through-hiking the Winds Rivers in Wyoming. My trip, unfortunately, can't be made until mid-July. I'm working on the logistics now.
The South San Juans are beautiful. I did a day hike (with a completely locked up back, no less) up to Quartz Lake a couple of years ago. I'm very anxious to return.