AC, here's a quick construct on the dead body cleanup I was working on. The idea is to have them sink into the ground, which can cause visual problems in some circumstances- like when half on a cliff on on top a shelf. If graves are selected in the MCM, a grave with their name on it is placed where the body was laying. The player can pick up and carry only 1 body at a time. This allows the player to "bring" a favored companion back to their home cemetary, or they can just be left in the wilderness marknig where they fell. Creatures don't normally have graves unless they're a companion, friend or ally.
There's still lots of work to do on this one, and a few "branches" I'd like to explore as additions for creatures and favored fallen comrades. I'll either do an "array-redress" as a workaround or need to find another way (like moving the body to a "hidden" location then do a move to with fade) since disable, enable triggers a reset on the npc re-rolling their inventory.
