‘Final Rights’ recently published by Lisa Carlson and our current ED Josh Slocum gives a lot of that detailed information. You can of course supply your own casket bought from anyone. There is a very lovely funeral Home in Enid which doesn’t look too far from Tulsa. Brown Cummings, and speak to Shaun. The reason i know this is they have purchased biodegradable caskets from me! They sound like very genuine helpful people. Good luck. Jane Hillhouse final footprint.com