Cremation/Headstone for Peggy Pense

My mother, Peggy Pense, passed away unexpectedly this week. My father has been in the hospital for almost 2 1/2 months, therefore money is extremely tight. Her wish was to be cremated, but we just don’t have the funds to do it at this time. Mom & Dad had previously picked out a double headstone for both of them, and it is my goal to make sure that we can get it for her. Any help would be greatly appreciated!! Thank you in advance!!!