$75/hr w/o editing is fair number.
Anything less then $70, at least around these parts, means you're a jerk and under pricing the industry thats already in the sh*t hole and it really goes to about $100/hr. A lot depends on experience of the shooter.
Next you have to consider what is "2nd" means? = if all you're doing is backing up primary photog and getting few fun angles here/there, its one thing . If its a 2 crew job and you're 2nd means you're a full photog w/ full gear then its a different story - (do you need an assistant for that job?)