Iwas told that this is a good place to ask my question about a complete MK Thunderbird 40 kit I bought in 1984. It has only been opened to look at the plans. One of the guys at our local field told me that the MK kits are sought after, but didn't know how much it might be worth. Even though Ihave had this for years, Iknow very little aboutMK, Katoand his planes. Someone has suggested that theThunderbird was his first pattern design. Isanyone familiar with these kits and know about the history and possible value? Thanks.