With full support, you should be just fine! Unfortunately you wont know until you try. It is an expensive amp for how many watts you get, but it has some good tricks up its sleeve. 4 ohm capable, multiple XLR outputs, GLORIOUS TUBE TONE. If its not loud enough with both of those cabs, you may want to look into something more efficient. I have zero experience with the 210AV cabs, but i run a single SVT212AV with the PF50 and its fairly loud for medium gigs (~220 people)
Damn I still haven't pulled the trigger but stuff like this makes it seem inevitable!