I am new, and I have a customer that has 3 cow skulls that have been sitting around for a couple of years they want cleaned up. There is minimal flesh/hide to be cleaned off the outside, and they don't want them bleached as they will be painting them. Just cleaned up. I am charging $145 for a European, but am unsure on how to price these as I am only doing about a 1/3 of the work. Do I cut the price down to a third of the original cost?