Depending on WHICH new model (Blackhawk or Redhawk) and condition, $200-$400.
50-350 usd
Ruger's website has extensive sn data you can access.
100-500
Ruger uses a model number, such as 0804, but the suggested retail price of a new Super Blackhawk stainless 44 Mag is $829.
100-450 or so
50-500 USD depending on specifics
$400
100-400 USD
100-1000 depending on specifics
325 or so
50-400 usd
Ruger. 20-250 USD depending on specifics