You could have a look at the big Marshall lake loop to the east of Wabakimi. Put in at Marshall, go down the Kapikotongwa River all the way to Melchett Lake, then make your way back over to Meta lake and out. No shuttles needed. Not sure what types of distances you like to put in, but that would take probably around 15 days, maybe more if you threw in some side trips, up to Faubert lake for a day, Makoke, could even port over to Kayden Lake and play around on Ogoki lake and river for a few days. I can set you up with maps if you are interested.
If you haven't done the Steel Loop yet, you could throw that in as well, somewhere between six and ten days, it's a loop trip as well, so no shuttles.