The old Rem-Marlin SBLs are definitly available. And you can get the Ruger-Marlin version for around $1600 if you are willing to special order and wait a few months. If you want one right now you will pay the extra $1K markup for your impatience.
Different gun though from what the OP has for sale, so not really apples-apples.
Different gun though from what the OP has for sale, so not really apples-apples.