Gerald,
I believe that what Greg sent to threaten you is a load of crap. I would not worry about it. How can a retail price list be private information? Rangate would send this list to anybody who requests info on the product, so how is there any harm done here? Besides, not many folks will be lining up to spend 7-10K on a gimmicky mobile workbench anyway.
Maybe you were offered a super deal that is not in fact retail pricing...