Thanks for the confirmation regarding the Kona connection. According to Gay Wise of CBS (this was her bike) they produced three of these in '88. I'll have to try and get more info on the Kona paint connection. And the one piece bar-stem combo seems unique.
Art Tyler was Brodie's painter, from the late 80's up until around 92, before Harald took over. Some of the custom Explosifs when to Brodie for braze ons and paint, as part of TBG