Would like to drive the parkway north from around Asheville, NC, first week of June, mid-week. Would like to make it to Roanoke the first day approximately 260 miles. I understand the speed lit is 45 mph and less so at least 5.7 hours. This time not interested in stopping at every "lookout" just a leisurely drive pulling our 28' 5th wheel enjoying the spectacular scenery. A little help please. All comments welcome.