Kinetic and potential energy in magnets?

Very little is known about basic physics for magnets. You can use google.com to search for papers by Maxwell and Faraday and then you will know about as much as has been learned.

Energy is not a physical unit. It is a philosophical concept and an accounting technique used to analyze mechanical and chemical exchanges. In nuclear physics it is defined as a wavelength of light, in biology it is a synonym for metabolism, and in public utilities they say energy when they mean connectivity. Anybody who uses the word in any other context either does not know what he is talking about, or is peddling something you don't need.