$7/pull would be more painful than the round hitting. Ouch. A rich man's sport. Still, not a bad plan, but the Angel of Mercy should be closer. I wouldn't want the job to be botched because he's got the shakes a little maybe, or maybe there's a breeze.
It also violates my desire to not know it's coming if we've had to arrange for me to be still and the shooter to be at a specific distance and frame of mind.
So, $7 for the round plus the going rate of a professional hitman.
I suddenly have a very macabre desire to crunch the numbers on that vs. a traditional open-casket funeral these days. ;)