We didn't go to Jhandarai, but to Thal. Both are very close so can give that a good idea.
Thal-Dir we traveled in the big old fashioned Land Cruiser, 150 per seat. Can accommodate 10-12 people easily. Available from the adda if you reach in time. Tahir is the driver.
Badgoi: crossing over one day and Shahi Bagh next day is wise. Once you reach Thal/Jhandarai look for Irshad of Utror, request him to arrange one more Land Cruiser/Surf. You'll need 2 if more than 7-8 people. Irshad is important, he is doing this route for last 6-7 years. 4000 per vehicle is a good estimate.
In Utror, you'll have to stay with locals. Don't hesitate. Get 2 vehicles next day from Utror, not difficult. Food shall not be a problem, no KFC though (pun intended). 4000 per vehicle again.
Onwards to Kalam I'd highly recommend getting Fielder, even 3! Call it Waghai: when in Rome do as Romans do. Rate is 100 per seat, for full car they count 6 seats, till Kalam adda. Easily available. If you're not staying at Kalam, look for hiace, called flying coach, it will fit you all.
Hope this is helpful.