You will need to contact Thompson Center Customer Service thru their website.
Frame
0-1000 USD depending on exact configuration and condition.
0-500 USD depending on exact configuration, condition, accessories, etc..
300 or so
There are many brands of 410 pistol, Thompson Center Contender and Encore, Taurus Judge revolver and The Comanche just to name a few. Any or all should be available at your local gun store. If not or to do some research go to www.gunbroker.com and have a look around there, the site is loaded with about any firearm you could dream of.
There is only a subjective answer to this question. To try and be speciffc, a pistol where the breach can be locked in the closed position would be about as quiet as you can get. An example of this would be a Thompson Center Contender single shot pistol. Another requirement for a successfully "silent" pistol would be a subsonic cartridge. This could be either a naturally subsonic cartridge, such as the .45 ACP or 9x17mm/.380 ACP, or reduced loadings of a naturally supersonic cartridge to make it travel at subsonic speeds.
A question usaually asks something by using one of the following words: who, what, when, where, why or how. You have made a statment and put a question mark at the end.
300-400 USD
100-500 USD or so
No site currently exists
50-400 or so
If you ever have the privilege of using a Leupold scope, you will know what a really good scope is. Leopold's are good. But not what they asked! BSA scopes are of GOOD quality. I have had BSA scopes on many of my guns, including a Thompson Center Contender in 45-70 Gov't. A very strong recoil load, and the BSA Gold I have has done great! Never missed a beat, and with a TC you only get 1 shot...it is a single shot pistol/rifle.