Ruger's website has extensive sn data you can access.
50-400 usd
100-400 USD
50-350 usd
Depending on WHICH new model (Blackhawk or Redhawk) and condition, $200-$400.
Ruger website has date of manufacture info. Under customer service, historical nformation, pick weapon type, then model.
Ruger uses a model number, such as 0804, but the suggested retail price of a new Super Blackhawk stainless 44 Mag is $829.
100-500
$500-$700, depending on exact model and condition.
100-1000 depending on specifics
100-450 or so
50-1500 USD depending on specifics.
$400