These guys are open during the winter.
http://www.aubergevuedeladune.com/inn_english/auberge.htmlThey
are in Bouctouche and towing to Cocagne wouldn't be bad, or can tow
across the bridge in Bouctouche and park your vehicle at the other side
of the scales, the trail into Notre Dame are right there.
i'll keep posting places as I find them.
if
you do book, please post here. There are 6 rooms there, and a barn
you can leave your bike over night. you get a key to the barn.