Hi Groff...glad to hear you'll be making the trip up to Lac aux Sables. I'll be there co-driving for Charles Hammer in the CHAG Autosport VW Golf.
Unfortunately Lac aux Sables (Hervey-Jonction) is a very small town so there aren't a lot of hotel options nearby. Last year I stayed at the Motel Di-No about 10 minutes from Rally HQ which was pretty good, although I don't think they have many rooms.
In 2013 I stayed at a small hotel about 30-40 minutes away in a town called St. Ubalde which was very basic at best.
Beyond that maybe check to see if there's any houses/cottages in the area for rent? You can also camp at the service area which is what the team and I will be doing this year.
Good luck finding something and I'll see you there!
--Aaron Crescenti