There is a very nice "crop duster" kit/ plans pacjkage availbe here in the US. You will find it at
www.teamduster.com. It was designed and is flown by my good friend Hollis Calvert in Mississippi.It is a very scale rendition of an AirTractor 502. Flown with a a large four stroke or two stroke (moki 1.8-2.1) and is about 100 WS. Go to his website to check it out. I have the laser cut short kit and plans and have seen the glass work pieces and they are quite nice.
Tommy