I went through the same thing with my first pump -- when I said I wanted the omnipod and my doc didn't have anyone on that. But after I insisted I was only interested in the tubeless pumping he was more open... I was his first patient and the entire office had to learn all the software but they did it! Yr. later I switched to t-slim :) I was sold on being on a pump -- not sold on the omni.
Your doctor has to ultimately do what you want - it is your health - be persistent... but pleasant :)
Good Luck
Holly