just an idea for you to kick around... I would be thinking to make my design scalable and adaptable... there could actually be a market for your product.. higher end golf courses could probably be persuaded to spend the money considering they wouldn't have to pay a guy $30-$60k a year to drive around in a cage which let's be honest doesn't look to classy... but a sleek robot doing the job... Then there is industrial lawn maintenance... potentially tons of product could spawn from your little project... Think a little more like Elon Musk or Jeff Bezos... if all you wanna do is pass your assignment just throw a couple of motors on a lawn sweeper with the brain box from an autonomous lawnmower and be done...not trying to be rude but I think you have a great idea here and I'd hate to see you waste it, just think a little bigger and long term..