It is the same as the Browning Hi Power. Please use the link below for the Browning Owners Manual for cleaning instructions.
http://stevespages.com/page7b.htm
It is NOT the same as a Hi Power. The two are completely different designs. The CZ-83 is much closer to a Makarov.
But, yes...Steve's pages has detailed info on the CZ83.
50-100 or so
depending on condition $250 - $300
50-250 depending on specifics
Impossible to answer without a detailed description to include the serial number.
It means that it takes 9mm Parabellum ammunition also known as 9mm Luger and 9x19.
Have it examined by a gunsmith. It might be chambered for any of the 9mm rounds.
10-200 usd