We made it! it went way smoother than expected - we ran the whole trail where possible (lots of deadfall, beaver dams, etc) and made the circuit in just about 9 hours - 10 if you include the stop 30 miles in for pack-rafting over '50 percent falls'.
Grant was amazing, carrying the pack once we were down to one (we stashed the pack about 6 miles in) and calling on his steeple-chase experience to hurdle trees that were higher than waist level. He also always let me take the lead, which was awesome being that i was *ahem* slightly slower than he was.
A great trip through great country, with some sweet, rare north central Minnesota whitewater pack-rafting thrown in. Grant is hooked - we're already thinking about the next adventure.