I-40 and I-25 are a better route in the winter. Your big problem with be Raton pass. If you cannot get over the pass, I would recommend a stay at the NRA Whittington Center.
Since you do not have many miles under your belt, I would recommend you not take your RV on this trip. There is a sticky thread about how to manage an RV in the winter. I involuntarily stayed in an RV in a lot of snow and cold weather and I did not find it enjoyable. I hope you have a well insulated coach and the area where the tanks are is heated.