To my mind Gravestones - Die Classy is the best gravestone mod ever created (at least for minecraft 1.7.10). But unfortunately minecraft 1.7.10 is long gone and no one really maintains mods for it. And even more unforunately there are some issues with the Gravestones mod. For example it conflicts with other mods that add a way to keep your inventory after death - Twilight Forest, Thaumic Horizons, you name it. Or for whatever reason armor put onto a player bust gravestone renders perpendicularly to it.
And, because no one else would fix it, I did it by myself. And there you have it - Gravestones Die Classy Updated
Gravestones will store items from following mods adding new inventories:
When running alongside mods with options to keep your inventory after death (Twilight Forest, Thaumic Horizons, etc.) Gravestones should spawn after the attempt to keep inventory, and keep all remaining items.
I've got a permission from Subaraki (or should I say AbsolemJackdaw?) himself to update his mod as long as I keep it open source. So yeah, no problem here