First off, welcome to the forum! Second, what you have there is a Garden Tractor, not a lawn tractor. I'm sure a mod will be along shortly to move this to the appropriate section.
Third, what you really have there is the potential for a great machine. If the hours are actually 444 (which is near impossible to tell since the hour meters can roll over forever), you got a rare bird. Either way, though, that could be turned into a nice worker. Do a search of the site and you'll find loads of info on the Quietline Series.
The biggest thing you're going to run into is the motor mount bolt rubber absorbers (called ISO's, makes looking them up easier) are probably shot. You can replace with stock new from Cub Cadet or replace them with solid mounts sold here on the site.
Have you tried firing it up yet? I'm sure it's going to need a carb rebuild and some fresh oil/trans fluid. Good luck with whatever you end up doing!