There is no one handgun, and no one answer to your question. The cost of producing a vest pocket sized .22 auto may be $50, while the cost of producing a stainless steel .500 Magnum revolver may be $700. You need to be more specific in your question.
75-300 USD
Anywhere from 100-100000 or more USD
100-1000 depending on EXACTLY what you have.
50-1000 USD depending on specifics.
100-500 or so
a hand gun
10-1000 USD depending on speicifics
Gun store.
who invented the six shooter hand gun
There is no 32mm handgun. That would fire a bullet more than an inch in diameter.
break down a lorcin hand gun
Long gun or hand gun