Does anyone know of an easy way to buy a CPAP machine?

I need the CPAP before they can schedule me for surgery. My insurance want over $300 for it. I don't mind if it's a used one. I've looked at craigslist but no one is selling one in my area. Have any other suggestions??

We greatly appreciate your interest in helping us build our Q&A database. To discourage vandals from posting garbage, however, we require people to register before posting.