10-200 USD or so
around 200$ higher depending what condition its in
50-150 USD or so
You can request a owner's manual at the Ruger website.
You can get a manual for free at Ruger's web site.
$100-$300, depending on exact model and condition
Go to the Ruger website. There is a section to date your 22 by serial number.
Is it a revolver or semi-auto? You can go to Ruger's website to look up the serial number.
Ruger has sn data on their web site. 100-375 USD
300 or so