could anyone (maybe an avid pearl lover) tell me about this kit? How are the shells made? is it a mix of wood an fibreglass or just a layer? They sound interesting and i may buy a set secondhand. Saw a guy who had restored one and was selling for $700AUS fully restored. It said on the ad that they are "maple rock shells". Am a bit confused. If anyone coul help or give me some information about models/series of wood/fibreglass mix pearls then that would be grand! thanks.