You probably don't need a gas guzzler like that. Go for something between 300 and 450cc with selectable 2 or 4wd. It will easily pull a trailer full of feed or sheep! For work either Honda, Yam, Suzuki or Kwacker. I use a Loncin 250 which is Chinese and Yamaha powered. 2wd only but I only use it for hunting, shooting, ferreting etc. It's very good but no substitute for something designed for work. Good luck, cheers,D.