There is no unified market price. The young apprentice and the senior brother are established as masters. They are senior Feng Shui masters, heirs to the family, the master, and international masters. The same is true for just looking at the feng shui of a house, excluding the solution, and the price is also very different.
Those are not important, what is important is how much money you are willing to spend to get what you need. Some people want to spend money on treating colds to cure cancer. In the era of commodities, only equal exchanges can be made. If you just want to get without paying, it can only be wishful thinking.