Rem 121 pump - fair shape. No scope mount
CZ 452 sporter with leupold rimfire scope
The Remmie because it is way cool and you want one rifle with iron sights. Yes I know you're nearing retirement. But think of all those guys who retired 100 years ago before scopes were common. Somehow they managed to keep shooting with irons and so will you. (And the Marlin would be easier to replace.)
The CZ because I presume it's lighter and you're nearing retirement.
