$59 for the v2 pro series--650mah battery with proprietary connections?  You gotta be kidding me.  You could get a better, more versatile vape going for $30.
Here's what I would recommend: 
1.  Sigelei mini 30w
Sigelei Mini 30W Box Mod - Eciggity
2.  Nautilus mini
Aspire Nautilus Mini - Eciggity
3.  18650 battery
Samsung INR18650-25R 2500mAh - Eciggity
In other words, add $20 to your budget and you'll have a device / tank that will stomp that V2 pro providing a superior vape, more power, more battery capacity, replaceable battery, more settings etc.