I believe we can do something almost-exactly like that, Phil: with the exception that we'd need to use shorter distances (6 yards on all stages: or at most, 10 yards on the first two stages, then 6 on the 3rd stage).
Third stage "strong hand only"! Now that would be tough, and would inject some real-realism into it ("you've been shot in your weak arm, and your opponent's right on top of you!") I'll go with that, if our competitors want to!
Jim