I do not know the pure material costs. 80cm L-stones including foundation and installation cost us €190 net per meter. You’re not seriously considering installing 150kg per L-stone yourself, are you? If you don’t do it yourself, the “work position” is missing from the offer.
So of course I don't want that. I have arranged with my landscaper that I will provide the material. He charges nearly 90 euros per stone for his work.
I don't understand. Why don't you just let him get the material and save yourself the hassle. Then you also don't have to coordinate the appointments anymore.