I prefer cremation without a funeral; you only pay once for it and that's it. Maintaining a body in a cemetery costs money; at least here, you have to pay a monthly fee; otherwise, they'll dispose of the body by throwing it into a common grave. You know, cemeteries are a business too, and they need space and people who pay.
And as for autopsies... I don't care. I'll be dead, like a doll, just a pile of flesh and bones destined to decompose. It doesn't matter if I fall into the hands of a lunatic.
Anyway, for funerals, they also remove your clothes, and the body is prepared for it. I've seen some videos, and your organs are emptied and the "exit" body parts are filled so that no fluids or matter escape.