wanted: 165 mm crank

I need a 165 mm crank for a Raleigh Cadent road bike.  It's the left side.  The pedal was stripped trying to change over to clipless peddles and the bike shop is having trouble getting the part.  We even decided to replace the whole sprocket thinking it would be easier to get, but we were wrong.  Any help or advice would be greatly appreciated.  PM me.