Refurbished whipmix

Hi Folks, Does anyone know where to get a used and refurbished
whipmix? The new ones are over $800 and I’m trying to get one for
less. For those who don’t know about the whipmix, it’s a dental
machine that mixes investment (for casting) and vacuums it at the
same time. According to my goldsmith it’s the best. Cathleen