Active job

Replacing weak pressured shower head

I have a shower that is one of the Felton mix showerheads with the mixer and shower head all in one. I want to know how much it will cost us to have this replaced with a shower head and mixer separately. Wanting something that will give us more pressure and spread. I would like to purchase the shower head and parts so I can get the look I want if you let me know what you need.