Several sections down is a "Commerce division". In it there is a "Machinery for sale and wanted section". Might be a better place for getting your machine. I have a couple of conversion machines and others here do as well. For low cost of operation and holding fairly close tolerances on small parts Omniturns are hard to beat.
However, if you can get one for $3k and not much in shipping, Omni will sell you a complete G4 control that would bolt right on- might be $4k-$5K, but you'd still have a complete machine for maybe $8K to $9K, with a brand-new latest-gen control.