Good idea about the stoller because the asphalt gets just too hot for tender little feet and they could get blisters.
Take Izzy's shot record too. You could even make a copy just to keep in the RV all the time so you don't forget to bring it along.
Maybe take her towel and some of her shampoo just in case she gets into anything. Sometimes traveling and all the new adventures can cause a bit of loose stools that could be a bit messy.
Have fun on your vacation Take lots of pictures to share with us.