Driver from Urgench to the Fortresses

[blueberries]

Hi,
I'd like to get to the desert fortresses including the Ayaz Quala. I'll be travelling from Khiva and I need to get to the Urgench airport around 9-10pm.
I know I can take marshrutka from Khiva to Urgench and then even to Boston. How much would it be for the car from Urgench (or Boston) to take me to fortresses for half a day/a day and drop me off at the airport in the evening?
I will be travelling alone and since I will be returning to Urgench at night I'd like to find a driver, who will be safe and recommended by others.
Many thanks!

[steven]

I'd say around 40$ is a good rate. Hotels in Khiva are happy to book you one.