I'm looking at building something to mow my lawn with remotely, since I can't really walk much anymore. I have small cell lung cancer and am now on permanent oxygen, so I'm looking at economical alternatives, since my yard isn't huge, and lawn service is outrageous. The lowest quote so far is $300 a month for 3/4 of an acre, so, if I can build something using a not too expensive crawler and a modified push mower, I will. Every idea I have seen so far though is way out of my price range, so I'm just looking for ideas.