I think it’s safe to say the unit was available at the time it was listed 19 hours ago. However, it’s possible it had already been listed elsewhere or parked locally with a sale sign. It’s also possible someone here local to the seller jumped on it yesterday evening.
These things sell fast, and T4500’s are uncommon and desirable. Frustrating, but probably not a conspiracy to tease wannabe buyers.
I just hope the buyer doesn’t think it really weighs 900#!