The third week of January should under normal conditions be Ok. Tough to say how it's going to be in 3 weeks especially considering the roller coaster weather patterns we've all been seeing. I know you would like to make a loop back from Lac La Belle to Gay, but, if 133 isn't rideable, you could backtrack to 124 to get to Gay or run to Gay first then backtrack out on 124 to 3 to head North to Lac La Belle. Just a thought. FWIW, that particular trail has always been a problem child. Fortunately when I was riding, we had ways to get around it on old logging roads. Good luck in your planning. Enjoy!