you can portage most everything, corkscrew might be a prob. never looked at it to portage. others may have and can chime in. eye of the needle might be a tough portage but the right side could be an easy pour over in a duckie, depending on the cfs.
how many people in duckies? with a few it gets easier and safer.
BTW, i have run it in a 13' Maravia Spider @ 400 in May (launched @ gleason) but no gear, just repair and 1st aid, toilet and fire pan and sleeping bag and some minimal food, backpack stove, instant coffee, no beer. you know the routine.
lower corral, black rock, and corkscrew were the worst. the rest was just boney and mostly a bunch of rock dodging and spin off's. only had to get out and push a few times in the lower end.
yeah, i don't know if that's helpful or not. i figure you're probably trying to figure out whether or not to spend the money on the permit.
tough call. you'll have to make that one on your own! good luck.
the one thing i remember, is that at least everything at that level was happening in slow motion!!!