No convicted felon in ANY US State may possess ANY cartridge firearm unless they have received an executive pardon or completed the process for a restoration of firearm rights. Penalty starts at 5 years in a Federal prison, no parole. This is addressed in Title 18, section 922, US Code.
Not legally. It's illegal for a felon to own a gun in any state.
A Mossberg 22 rifle such as the Plinkster depending on the condition is worth around $150-200.
You need to contact a lawyer to get a correct answer.
There are dozens of different models of the Mossberg 22 rifle. You did not tell us which model, and we need that to give you an answer. Sorry.
50-100 usd
Made in 1976. Link at bottom of page to Mossberg .22 rifle info.
Depends on WHICH .22 Mossberg, and it's condition. It may be as little as $25, or $250.
50-125
There is none on the Mossberg 151M due to the date of manufacture
50-125 or so
The mossberg model 151K was made from 1950-1951.
This model Cross references over to a Mossberg model 42 or 42A extractors can be purchased at http://www.wisnersinc.com/rifles/mossberg/mossBArf.htm for around $12, Vintage Mossberg .22 rifle information can be found at home.epix.net/~damguy