The hearse idea sounds great!
Funny that these were built for the elite of the Nazi party and were incredibly expensive, but towards the end of the war,the ones left were painted matt black and converted into more unitarian duty's like a radio car and there was one converted like mine into an AA unit.I believe there is one survivor which was restored at the Mercedes Benz museum and if it ever came up for sale, I think you would have to own a few oil companies to afford it!