Hi JT, and welcome to TF.com!
We had a 484 and 3 newer versions of the same tractor. We found them to be a great tractor, but when it gets down near freezing you will need to plug it in.

You will want to check out the park brake, it is a band inside the tranny, so if it is gone it's not cheep for labour to repair. No serious faults, we found them to be a good reliable tractor.
What were you planning to use it for?