I have a few extra items that I don't take on my BWCA trips anymore.
2 large H2O roll top portage packs. We used to use these for carrying our lightest, bulkiest gear (sleeping bags, mats, tarps). The straps are not substantially padded and are only attached by welded seams, so I don't recommend using these for heavy loads. I have not tested these for waterproofness. Both bags for $25

Kelty Canyon Tarp: This is a very large, catenary cut tarp. It requires a pretty large space to set up, and because of the cat cuts it also needs specific guying out and staking to work. I'll attach a picture of it set up that I found online, but I could never get it to work well in BWCA spots. No stakes or lines included, and is in used condition. $25

Pickup in the Seward neighborhood of Minneapolis, or happy to ship at cost from 55406.