I also agree with the others that say the time is doable. Will you be tired? Maybe. maybe not. A lot of people get caught up in their own feelings that they think everyone else is like them. Many don't want to drive further than 50-100 miles a day. We've easily done 600 in a day with the RV (both driving a motorhome towing a car and the other time diving an F250 crew cab towing a 35' TT. We've also broken up that same trip and done in 2 days. Either way, I don't think I felt any better splitting the distance up. You are the only one that knows how far you can drive and how far you can go. Just leave room in your schedule and don't be afraid to change your trip up while doing it. And remember that there is a difference between driving a motorhome or pulling a trailer than just driving a vehicle. It can be a little more demanding to some and your time may be a bit slower.