You can find a scope/mount for under $300, but it will look different.
There are mounts that replace the rear sight, putting the scope well forward of the bolt (no need to change bolt handle). That DOES use a long eye relief scope. Some folks like them, some don't. It does make it very hard to whack yourself in the eye with the scope.
You can find the rail for about $12-$20. The scope will probably be a PISTOL scope (long distance between scope and eye)
Drive the 2 pins out that hold the rear sight in place. Use an aluminum or brass pin punch (after removing the upper wood) drive sight foward off the rifle. The rail mounts right over the dovetail for the rear sight.
What we have here is... failure- to communicate.