If you only have 5 days total, I'd go in at Beaverhouse at sunrise, have your paperwork so you can skip the Ranger Station and head straight East down Quetico lk. August with any luck you should have a tailwind and be able to make it to at least the end of Quetico lk, maybe Oriana.

Spend a day on Oriana, then jump into Jesse and then exit at Nym if possible. If you have to go back to entry point, I'd go from Beaverhouse straight into Cirrus, base camp somewhere central and day trip.

5 days total isn't much and IF you lose a day to high winds, which isn't that uncommon, you don't want to have a long way to go and a short time to get there ;)