Something to be aware of when getting a trumpet maker to do this, trumpet pearls are usually flat, not concave like sax, as you can see from his website. He'll have to buy a set made for sax or carve out every single pearl, which seems very labor intensive to me. There are also multiple sizes to deal with. Why not just get a good set of sax pearls and be done with it?
Also seems like a princess and the pea situation with you guys. I've played saxes with plastic, MOP, bare brass or, on clarinet, no touches at all and never given any of them a second thought. I have more important things to be concerned about.