Ty,
The Flying Models plans list that I have from around 2002(?), which is the one that Bob's your Uncle posted for me in the admin section of the forum, starts right around that time (1964-65). I glanced through it last night to see if the Stunt Liner might have been mis-categorized there, as some plans are, but didn't find it. The early plans skip around some when you'd think they would be chronological.
Gary