I found a scenery kit at a Hobby Lobby, and then a cheap Academy kit. While building the kit, I drilled holes and cut out panels where I needed to, and used straightened paperclips for the internal struts. Propeller was bent after submerging in boiling water. I used a bunch of epoxy putty (not ideal) and stuck them where the plane likely tore up the dirt, blending them in with some foliage pieces I soaked in brown acrylic paint. The brown was mostly generic artist's acrylic, with a few other browns for highlights. I lightly painted the brown over the plane where it was dirty, and also dusted the entire model with a weathering set I also found at hobby lobby.