1973 Porsche 911 RS 915 Transmission Oil Pump
Spotted in Los Angeles is a 1973 Porsche 911 RS 915 Transmission Oil Pump for $6,499 USD.  The seller states all pieces are genuine NOS Porsche parts.  This set up is missing the ball bearings needed for the pump gears.  Can those be found?  Although the effective of this style of pump may not justify the price , I still would like to fit this to my 915 transmission.  It definitely has a cool factor to it.
What do you think of this pump and its price?
Price $6,499 USD
Fitment:
1970-1973Porsche 911
Includes the following:
91530190300 Nose Cone USED
91530724301 Bearing Sleeve NOS (four)
91530724000 Oil Pump Gear NOS (one)
91530724100 Oil Pump Gear NOS (one)
91530703300 Pump NOS
91530703501 Pipe NOS
91530703901 Pressure Pipe NOS
91530703601 Pressure Pipe NOS
Note: we do not have the ball bearing
What do you think?