My condolances for your personal loss
My accolades for the inheritance she has provided to you and your siblings.
That is a thought. I may look into it. I have also considered a marker in the cemetery, that is all that remains of that little village church that I attended 60 years ago. Several of my near relatives are buried there; my twin sister, and both of my grand mothers, one grandfather, and my step-grandfather. It would be a fitting place. The nearest human habitation is a quarter mile away, and it is surrounded on three sides by trees.