Collector or the "Gray Market Seller"
This is has been around for a while but is increasingly becoming a problem for you the consumer.
What do we mean by Collector or Gray Market Sellers?
These are people that claim this is a hobby or "work out" of their garage. There are many different forms. Bottom line is most of these people are working under the table. In other words they don't have a permit or business license let alone insurance. Many of them will tell you they have done work on the item they are showing you but at best they have only blown the dust out of a unit and cleaned it up. BE VERY CAREFUL.
Most of these people only will deal in cash. That should set off all kinds of alarms. We know of one client that flew from Colorado Springs to Up State New York only to walk away from a B3 and Leslie because he felt he was being rushed into a cash only deal.
Again your on your own and BUY BEWARE.