Austin, TX to Portland, Oregon any suggestions?

Bob Nestor said "hard driving" and I agree. My only question is what was he driving and how fast was he going? 3 1/2 days to do 2300 miles is to much for this old man. 2300 is going across 40 to Bakersfield and up I-5. That depends on the Dec. weather. We limit our driving to no more than 450 mi. but usually around 300 to 350 pulling a 37 ft 5er. Anyway have a good trip. I'm still shaking my head at 2300 mi in 3.5 days...WOW...John