The majority of Prometheus Gen II machines out in the world are not available for resale. Those machines were leased from Prometheus Tool Corp. They are leased, and just as with any leased equipment, they are not available for resale by the people who leased them. If you purchase a Prometheus from an individual that leased it, you will be receiving stolen property and will be forfeit.
Below is a link to a list of serial numbers belonging to Prometheus machines which are available for legal resale. These units MUST be accompanied by a bill of sale signed by Brand Cole.