Grave / Tombstone engraving

Where are you planning on sourcing the material?

One option might be a cabinet fabricator — marble is $40–$150 per sq. foot, while soapstone, which is softer and more easily cut is $70–$120.

Once you have the blank you can work up toolpaths.

There is an example for marble at:

and soapstone at:

Is there a reason why working with a local company specializing in monuments isn’t an option?