Not sure about VU3, but IMO it's got a terrible screen. Its 4:3 which is going to be a pain for most Android apps.
G Pro, however, is a great phone. A new phone should be around 26-27 ish.
You could get an Optimus G as well, its available for 20k MAX. You can get a decent piece for 17-18k.
Sent from my Xperia Z C6602 using Tapatalk 4