Trip plan from Calif. to Denver in winter

Hoping someone out there can give me some travel advise. I will need to travel from Sacramento area to Denver in early to mid March pulling a 25 foot AS with a Dodge 1500. It's two wheel drive without snow tires. I am considering using I-80 or dropping down south and taking I-40. Another possibility is taking US50 out of the Reno area. It crosses Nevada and Utah then catches I70 in Eastern Utah. I have never traveled US50 and thus I don't know if it has high passes that would likely have snow or if there are campgrounds along the way that would be open in the winter.

If anyone know this route I would really appreciate your advice.



Hobo