Pulling a jayco Pinnacle from Los Angeles to Butte Mt

Seems like a very reasonable trip. I go from north of Seattle to Anaheim a couple times a year towing a flat deck. 1,300 miles. Always make it in 2 days.
You should be able to leave the morning of the 7th and arrive on the 8th in the evening.
This still leaves time for a good nights sleep. You have a deadline. Not stopping at every good photo opportunity.