The cheapest way to do Namotu is staying at Nadi based at Rendezvous
www.fijirendezvous.com/You can see Cloudbreak from there and only 20 min boat ride. Plenty of boats right at the front door and people are going back and forth all day . Not a flash place but everything you need and a really good vibe. It's about a 30 min taxi ride from Nadi airport . All your gear fits in the boats no worries. Re kiting you need to be very confident at boat launching , you can't launch from the beaches at Namotu or Tavarua. Most of the boats drivers have a little knowledge of kiting but only a handful actually kite. If you dump your kite in the surf break don't expect someone to come and get you. Make sure your lines are organised for a boat launch before you get in the boat. We did it dozens of times with no dramas. There is plenty of grassed area at Rendezvous to do this and they also have cut a channel through the reef which means you have boat access at all tides , this is very rare.