The first one I bought was $900 for the box only
The second one I bought was $1000 for box/shifter/clutch/flywheel/tailshaft
The other one I sold was a complete conversion (pedals and all) for $1500.
That said, in my travels I priced them up from numerous companies and was quoted anywhere from $1200 to $2800 for a box with a 7M bellhousing. Expect to pay more for one with a bellhousing to suit a 1/2JZ as they're a lot more rare.