Rig A Laser Sail I'm Thinking Of Moving Down From A Radial To A 4.7 Rig In My Laser Sailing Dinghy, What Do I Need?

I'm thinking of moving down from a radial to a 4.7 rig in my laser sailing dinghy, what do I need? - rig a laser sail

I have a Laser sailboat, and I noticed that the radio is also very powerful, I looked around and thought I had the bottom of the same on all platforms, and change only the tip of the mast, it is difficult to know when the Page sells laser platform, "4.7" with a section below, but not a principle: S HELP