Prices you've been discussing are pretty much in line with what I pay. Micro-pave is towards the premium end of cost, a basic rub over is around £5, depending on volume and amount of work remaining for the setter to do. The more accurate the setting, less marking out drilling, etc, I nearly always supply my own stones, I often use stones which are unique and not standard sizes/shapes, hence the additional importance in the accuracy of the setting that I've made, keeping costs and breakages down!!