Finding the balance points for land yacht can achieve better performance and easier control.

Many people just bung a mast and sail on a 3 wheel buggy and hope for the best but there is a better way.

For the frame firstly you need to have enough weight on the front wheel to steer safely and for good maneuverability, the exact weight needed will vary for every sailor and surface.

OK if the balance point was exactly in align with the back axle with the pilot seated the front wheel would have zero weight on the ground... if it was further back than that the front wheel would rise.

So knowing that.... the balance point MUST be in-front of the rear axle line.... to get the exact point try a bit of 4x2 timber or a brick on the ground place the yacht frame with the mast fitted on it [try about 300mm in-front of the axle line] and do a few trial tests to find the balance point... when you find it mark that point with a permanant marker.
That point WILL vary from an adult to a teenager to a small kid

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Looking good! Though I bet it will be cold.