Liberator:

I'm gonna hate myself for this. Here I give away a secret.

From Shade Lake (just west of Agnes) take two portages into Yum Yum Lake. Good fishing for smallmouth and pike at Yum Yum, and some monster lakers if you want a prime time fish bake. Lay over at Yum Yum and them come back out. Should meet the length of your desired stay. And if you want a couple of rugged portages, take Yum Yum Portage into Kashashapiwi, then the portage out of Kashashawipi to the south and back to Prairie Portage.  

If you want more detail, send me a PM.

Tim

P.S. No longer a university faculty type. I retired. Best job I ever had, though you never get a day off.