I downloaded your picture and enlarged it and see several red flags.
First, why is the bucket attached and lifted off of the ground but the locking lugs (front hitch lock) not engaged? This is a big mistake and makes me wonder about the seller/operator driving the tractor in a dangerous way. Are the locking lugs frozen? Are they bent?
Also the hood latch is unlatched. So I admit that I don't always latch that, but why is it unlatched if you are trying to sell it.
Another big issue for me is the hydraulic hoses to the bucket. They are plumbed in such a way from the factory to not stick straight up like they appear in this picture. They are supposed to tuck neatly into the "keeper" on the side of the Ventrac. They cannot physically stick up like that unless something was changed at the "T" fitting on the bucket.
Next is the bucket has seen a whole lot of action. The actuator on the side of the bucket has been scraped up on more than one occasion. But yet these tires and rims look clean and new. This doesn't look correct at all. Can the seller explain that?