I’d say forget about a residential grade rider and go with a commercial grade walk behind unit. You can usually pick up an old belt drive 50 something inch walk behind for under a grand and they are built like tanks compared with residential grade machines. Throw a sulky on a walk behind mower and you have a poor man’s stander.
However if you have a wet yard like mine avoid a belt drive mower and try to find a hydrostatic unit like my old Ferris walk behind. I bought it off a landscaper for dirt cheap because it was a pain to change the cutting hight on requiring shims and spacers on both the blades and wheels to be added or removed to adjust it. Not a problem for a homeowner who is going to set it once and probably never have to change it again, but a royal pain for a landscaper who may have to change the cutting hight at every job to meet each customers requirement. Sure it has a ton of hours on it and needed some work. However it has been far far far more reliable, and bulletproof then any residential grade rider or zero turn I have ever had.