I need a little help on this rotavator. It is a selctatilth model# EMU5O. Serial number 6336527c. First question is what year was it made. Second is what oil does it take for the upper gearbox and the side chain drive. Also on the side plate there are two identicale filling plugs and a smaller plug near the bottom. I am not sure what level to fill the oil up to on the side. Lastly, is there a place in the USA where I can get parts. I need some gaskets, drive seal, and the chain tensioner. Thank you in advance for any help. I will try to figure out how to post a picture of the side plate.