Hi Everyone! Appreciate any advice you all can provide in advance!

My family and I are moving from Philadelphia to San Francisco in June. We have a senior dog that 60 lbs, so flying is out of the picture and we like the idea of a family adventure to start off our life on the other coast. We looked into renting an RV and costs are surprisingly not as bad as I thought it would be for a one way, ~$4500 plus gas, tolls, campgrounds, etc. Just the cost of having a service transport our pup west was going to be $7k so we're saving money :)

We have never taken a trip in an RV anywhere, let alone across the country so I'm looking for some advice on planning the trip. Mapping the trip, it looks like right around 3000 miles plus whatever stops and detours we make. As much as we want to be able to see some sights, we have a pretty compressed window for getting out west. The notional plan is to leave on a Sunday morning and then arrive in San Francisco that next Saturday (6 days). We would need to return the RV on Saturday morning so really 5 days of driving unless we get an early start Saturday. Is 600 miles per day unreasonable with two drivers?

Just for reference, I have done the trip from Philadelphia to Chicago (730 miles, 11.5 hours) by car, solo in a single day three times now. It wasn't pleasant but I made it work.