My 14 year old son would like to upgrade his lawn mower. He has been using an old snapper self propelled 21" mower that mows fine but is slow and outdated. It was what I used before he started to take up lawn mowing. He Wants something that allows him to mow yards faster and to be able to cover more yards. He can not drive and is just mowing yards on the street we live on right now and a couple other ones such as his grandparents and some other family friends. He Is looking to spend max of about $800. He wants a mower that has somewhere from a 32"-40" deck. He is not looking to buy new but to buy used off of Facebook marketplace. We have been looking and we have a good Idea of what he will end up getting but we just would like to have some input from some more people who have more experience in this area. some of the mowers that we have seen as good candidates are the cub cadet 800cc, cub cadet 760cc, and the mtd pro 1366 bandit. The ideal setup would be to have a walk behind with a sulky that he could get a good few seasons out of it until he Is able to buy a new mower of higher quality. All I need is a good suggestion of a good mower to buy that fits in that idea. If possible a link to a mower on the Facebook marketplace near the Louisville, Kentucky area. Thank you!