If you have never driven in snow, learn how before you attempt a trip in an RV. The roads are still snow covered in March. Breckinridge does a good job of snow removal, but it can be a lost cause occasionally. You are at 9600' there, so you are dealing with lots of cold weather and slippery conditions. Spring skiing is great, but I would somehow get some experience driving in that white stuff before you go. In Michigan, we were taken on frozen lakes to learn how to drive on ice and in snow.
We have no snow/ice here in New Orleans. Once every 20 years or so, we have a bit of snow and you can plan on 800 accidents during rush hour alone.