This would totally kill the mood for me. Almost like ordering atca sushi restaurant. 
Since I rarely do anything non-vanilla, I prefer separate prices for specific acts. Pricing-wise it makes sense, and it builds in the confirmation of services with payment. In contrast there are girls who have things like rimming and anal all inclusive, but their rates are higher than average at £100/30 minutes, for example. But it should come with a lower baseline fee. In this case the fee starts high, and then becomes quite expensive as extras are added. But again, maybe justified if she is legit young and hot.
