Depending on what variant, new or used, etc.., it can range from 75-300 USD
Yes, Ruger made them
50-200
Ruger.
Ruger's web site has extensive sn data.
Depends on what caused the jam.
Check the receiver and barrel
75-300
Depends on the store.
it is worth ..............$$$$
50-200
Not recommended.
50-225 usd