I never did think about the wieght thing........maybe if you made the mounts farther back on the frame?

 

hey i'd say your idea is right youjust need to make the main hitching point off the rear hitch with just a front guide on the front . i saw a really cool idea in FARMSHOW MAGAZINE its where farmers and inventors send in cool things they make , one idea was a guy turned a deck mower like you have and made a goose neck hitch that went over the top and was actually pulling it from the front , the bracket from the atv was mounted to the front bumper . the guy used a car ball hitch so the deck had full floatation . for anyone that does some fabracation its a cool place for ideas though lots of farm stuff .