The number of hours on the machine don't concern me. I had 180 hours on my 1025r by time it was 6 months old. Now, at 3+ years, its at 645 hours.
It's misleading to think this 2020 machine is covered under the warranty coverage the same as a new machine would be. The reason is the bulk of the "complete warranty" is either at or near expiration, depending when this machine was first delivered to the original owner.
The warranty is broken into two specific measures of time,
A. The first 24 months following delivery to the original owner. During this time, most things other than batteries, tires, belts, etc. are covered under the warranty until either 24 months have passed or the machine reaches 2,000 hours of use.
B. The remaining 48 months following the completion of the first 24 months of ownership by the original owner, assuming the machine does not have 2,000 hours of use. The Power Train Warranty covers during this time and the Power Train warranty is limited, its not a "Bumper to Bumper" warranty that some think it is.
The warranty terms are pretty clearly spelled out at the link below. Just understand that once a machine reaches the 24 month time frame and still has not reached 2,000 hours of use, the Power Train warranty covers the engine and parts of the power train only, from that point forward until the warranty expires.
Personally, if there was a new machine available for within $4,000 of this machines asking price, I would select to buy a new machine directly, instead of assuming this machine's remaining limited warranty. Also, the dual rear wheels could give Deere a reason to deny warranty coverage due to the "Unapproved Modification or Use of the machine"