Hi, the short kit is just the wood for the hull. You need to source everything else. This includes:
Mast - Ali tube, got mine from Wickes
Sails - home made from Mylar drafting film, or you can use ripstop nylon.
Brass rod and tube for the rudder
Lead for the keel - I used roof flashing cut to shape and laminated.
Cord for rigging - I use Dynema or similar sourced from eBay.
Two servos - main sheet and rudder
Receiver and battery.
Glue, paint, etc
Think that about covers it. Great model for a first sailboat.