Look and see if your state has at home Burial services. If they do tell them you want to bury the body at home and you do not want it embalmed. Then buy an absolute fuck ton of Dermestid beetles online. Then, get ready for the horrid smell as they eat the flesh off of your father's rotting corpse over the course of a year or more.
will is a limited immortal version of the dead person, you can only ask them questions about their death
"put it in the will" is because back in the 70s the will could only read paper slips
will is a shortened form of william, the first man to never die (in 1683)
If you bury the body first it should take away a good chunk of the smell but you have to bury it in like a mesh cage almost so the bones and stuff can't be slowly moved over time by the beetles.
When I read this, I was curious how possible it would be, if there's sufficient supply in the market... I found this vendor page. So, there would probably be enough supply as there are taxidermists who need to clean big game skulls, which require thousands of larva and adults, and the vendor say you should email them if you need more than 10'000. I couldn't learn how much time it would take, but they do say that more = faster, and to communicate with them to fit your project timeline.