hey Sean, thanks again for organizing that slide show presentation.
here's my two cents on the BC:
if you're allergic, you WILL get poison ivy. there's just way too much of it. key is to try to minimize it. and i agree with Mike G, remember to wash your gear & boat too.
first a description of the portage: it starts river right and goes for awhile. we opted to camp at the end of this part but on my next run, i'd like to go to the "beach camp" for better camping, which is located at the end of the entire portage. after the river right part, ferry across to the left, portage some more, then ferry back to the river right. beach camp is just a little ways downstream. start early on day 1 so you can make it this far without running out of light.
the reason for going all the way to beach camp is that you can do a thorough bath with soap and water knowing that most of your exposure is done with. there is one last portage on day 2 on the left but it's not too bad. i don't remember the ivy being too bad on that part.