Ended up with 6 yds 5.75 inches in the back and 10 in the front.. They poured 4K psi with fiber. Was a stiff pour so they earned their money
Pitch had to go 3 inches over the 30 feet so very slight. Also did the inch side to side. Had to do pitch that way at least for the 3 inches as I ended up with that end 10 inches above the grade of the rest of the drive..so they will bring in process to ramp up before paving.
Small world that it is, I use to work the same job site as this contractors father. Father son team that did the pour were good. I have worked with many of the people they have also many years ago so we had fun chatting about it all. LOL here I was worried about who I was going to get and how good they were and I end up with some top notch guys.
Guy that did the most work was old school italian.. very proud of his work and not willing to do a mediocre job. Pride in your work is so rare nowadays.
Thanks everyone for the helpful suggestions .. first RV pad I have ever been involved with,and help from all who have been there done that is great!!