Check out the Turbo Launcher from
http://kitelauncher.com
I love mine ... great for boat and drift launching. I also use the Line Manager on my everyday setup. Takes lots of time off your setup by eliminating the need to walk out your lines.
With both of these devices, make sure you become aquainted with them on the beach before you use them in real situations, especially the Turbo Launcher. Set it up and run back with your bar in hand to get used to the feel and to make sure your winding your lines on correctly. After a few tries with it, you'll get the hang. With the line manager, just make sure your lines are good before flying - that should be common practice anyway. I sell these in the shop and can offer any advice if you're interested.
Good luck.