Nikro PDC 4000 air duct cleaning machine + attachments

I am retiring after 35 years in the business. This Nikro PDC 4000 was bought late 2021 and used in only 3 jobs. It's new. In fact, the factory wheel covers have not even been removed. Five heavy duty flexible ducts with connectors are included. I'm asking $3,300.00 or best offer.