by Brian Z » Thu Nov 15, 2012 11:24 pm
Looked all over, haven't found any hint of this being done. The Marksman started out as air force surplus A-26 Invaders (for part of its career it was designated B-26, forever confusing aviation enthusiasts because there was also a B-26 Marauder, which was a totally different aircraft). On Mark's modifications were extensive, and from what I understand they eventually came to the conclusion it would be just as easy to build their own new type.