Whoa... I had in mind a lazy afternoon paddle... 10:30 at the take out is possible but I will have to see if I can make it. Scouting rapids is fine with me, no rush.
As for parking... The municipal campground is on the north side of HW 148 and just on the east side of the river. They told us we can park in the driveway, as long as 1/2 of the gate is free and can be opened if necessary. Of course you can park on the west side of the river (one of your red dots), but it's a longer walk... As for the 'Place Rouge', your other red dot on south side of HW 148, it's a private campground that's likely closed for the season.
I should be able to make it, but will confirm later tonight.
--C.