For five nights accommodation, having a car/driver for five full days, all meals except dinner, all entrance fee's, organising the visa reference number (but not cost of actual visa) and airport pickup & drop off, it was $820.

Going rate of driver/guide in Iran is $100 a day, so $820 was not bad.

Travelling independently is cheaper, but for only 5 days it was a great way to see a lot of the country in a short time. Obviously cheaper if it is more than one person too.