Airfix 1/72 Cessna O-1 Bird Dog
I remember building this kit as a teenager back in the 70s, but a few years ago I had another crack at it. It's actually quite a nice little model, spoilt only by the poor clear parts and some unfortunately placed ejection-pin marks.
I added a Pavla resin interior and replaced the glass on the upper wing and the cabin side windows from clear acetate, but used the kit front/rear windscreens.
The raised panel lines were re-scribed (there weren't a lot of them) and a few details added, such as aerials, wires on the rockets etc. Markings were custom made for a Thai aircraft.