If your MW gives you a hard time about this, I'd find a new MW. Even though you don't want a RCS, it is a possiblity, and you should be prepared. If you do need one, making these preparations will make you more comfortable with that scenario, but by no means means you are settling. I bet most of the women on this board went into their labor with a RCS birth plan along with their VBAC birth plan. Your MW should be accepting that you are preparing for all outcomes.
And it's not up to your MW to agree to your RCS terms. She won't be performing it, an OB will, and he or she would be the one to agree.