how much money did a colonial gunsmith make
Generally speaking, no. A felon cannot legally own or have access to guns, so a felon would not be able to work as a gunsmith legally. If the person has had his rights restored, then yes, he could work as a gunsmith.
a colonial gunsmith made 4.4 billion dollars a month.
There is no fixed answer because it depends on how much work the gunsmith will have to put into the job and how much he charges. The gun will have to be disassembled and prepared for blueing. You should contact a gunsmith in your area and have the job estimated. Hint: for a JC Higgins gun, the cost is probably not justified for the value of the gun.
You need a gunsmith
As many as they need to.
Best left to a qualifed gunsmith
Your two best options are to find a gunsmith and find a gunsmith. By the time you buy the necessary book(s) you could have paid a gunsmith to do it.
Best left to a gunsmith.
Not without some work by a gunsmith.
Actually, quite a bit. A good gunsmith is usually a skilled machinist, who will use a lot of math.
A blacksmith was a person that worked with iron. Some people did work of a more precise nature, such as locksmiths. A gunsmith worked with iron, but also with brass and wood, and his work was of a more precise nature.