No worries, Voltaire. :] 

Ha, Nova turning someone down because of a sketchy or shameful background. That never happens.

I'd say the only way he'd hear about Nova is if he happened to be around in their most recent dealings. E.g. Pissing off the Blue Suns, pissing off the asari chick at Omega, getting the weapons from the Blue Suns and giving it to an old contact of Kasyra's, getting contacted by the turian military for a job they haven't done so far. Soon to piss off Luek.

Except for the turian that represented the military, I don't think any of those guys know more than a little about Nova, and probably don't know their names. Or what their ship is.

The CS looks good. :] Derv already covered any problems that I'd notice.