Newbie Power Amp HELP! (BAT) VK200 Power Amp

Hi, I’ve been in the market for a new power amp for my Yamaha NS10’s and was initially gonna go with a Bryston 4B. But today I am offered a Balanced Audio Technology VK200 for $500. 

2 questions:

Is $500 a good price for this power amp currently? Or is it far outdated? I don’t know much about this brand and I’m not sure how old these things are.

Also, would a VK200 power amp pair well (or work at all?) with NS10’s? 

I’m on a time crunch and need to pull the trigger in less than 24 hours!