I’d recommend calling them directly and confirming the details for the specific tractor.

The listed company information is:

ST Autos Inc.

STAutosInc.com
1421 S Main St, Scott City, KS 67871
(620) 263-2684 or (620) 872-1212

I’d ask about the 6-month warranty, what is covered, and the delivery arrangements before completing the purchase.