I was there in August & stayed in Legian which is about 30-40 mins from Nusa Dua where I kited, i took a 13 mtr kite but could have used a 15- 16
the sanua side is a lot quiter than Legian/ Kuta so if you crew is looking to party stay at kuta / legian.
the cost to nusa dua by Taxi is say 50 -60,000 say $15 each way if you get your self a driver "Kijang" special he might charge you 70,000-90,000 each way but wait for you.
also take a bigger board !

take some light booties a few sharp bits depending on where you end up kiting.
have fun