It is difficult to answer your question, not knowing your personality or what you've tried that has brought results. Are you a survivor? If so, you might line-up some clubs, organizations, etc. where you could share your story and ask for pledges of support. If you're not a survivor or aren't comfortable speaking to a group, you might ask a friend who is a nurse to present for you. No nurse friend? Check with local hospitals, oncology practices, even pharmacies to find a person with knowledge who could contribute to your cause by volunteering.
For me, if someone offered me money to show them my scars, I'd ask them to double the amount and raise my t-shirt. I would do that to help someone else to get a mammo. I might get arrested for indecent exposure, but even that would promote the cause. Good luck!
