I wouldn't go that far. He is begging to be KO'd though, sooner the better.
I actually would go that far, seriously. I think Harrison is piss-weak but if he came out and treated it as a 3 round fight, threw caution to the wind and actually attacked the guy he's got a chance.
I really can't imagine that Audrey would come out like that though. I think he sees himself as one of the worlds best, muppet.
Like you said, it could well be a 5 punch-a-round job. With most of those being Audrey's love taps.