A friend of mine inherited a Shibaura sd1803 recently and is wanting to sell it. I have no idea what this tractor is worth and can find little about them on the internet. I know this about the tractor, 22HP, 3 cyl diesel. Hour meter shows 926 hours, don't know how accurate that is. Tractor runs and looks good, has 4 brand new tires, doesn't smoke, PTO and 3ph all in good working order. He has a 5' box blade to go with it. Any idea what a fair asking price would be for this tractor? Thanks.