Gorgeous weather there in August!! After that it's hoodie,hat and coat weather. I worked for "truck" back in 2010 and saw plenty of cool rides up there. If there was a way to heat the floor, I would make that a priority. Cold concrete drains the crap out of you. Everything else mentioned, I agree with. Insulation and insulating that door should work well with the heater. Good luck on your future endeavors!!



J