Motor modified (gearbox too long, wrong magnetoes);
Cooling flaps in cowling cut out and replaced by
scratch built ones (respective front ends in cowling scraped inside to form a
shallow angle into which a ring segment is glued in, individual flaps glued onto);
Cockpit interior slightly modified with scratch built
additions (esp. intrument panel, bar behind seat);
Pilot scratch built (torso from odd plastic parts, legs
and arms from bent and carved sprue, head and hands from a "Preiser"
cowboy, headgear putty);