I am planning on riding to the Wall in mid-May. I need to go from Seattle to Limon, Colorado to intercept a group starting in Ontario, CA. Seattle to Salt Lake to Cheyenne is my likely route. Based on what I am seeing on weather.com for various cities through Utah, Montana and Wyoming it looks like a cold ride. Day time highs in the 60's and nights in the 30's. Plus I'll go over some high passes between cities. So....think I'll be o.k. with leathers, a fleece under jacket, and Frogg Toggs for rain? Should I get an electric vest or liner? This will be my first long ride and it will be hard enough just to put in the miles....I don't want to be miserable from cold. Any advice appreciated.