Sounds like a pretty good price if it is in decent shape. You may have to send the slide back to the NS mfg in order to have the lamps in the sights replaced.
I think you are missing the point...
Your rounds are impacting high because you have the top edge of the front sight way above the top edge of the rear sight. The proper sight picture is to have both the top edge of the front sight and the top edge of the rear sight level with each other as...
DeSantis Shoulder Holster – Smith & Wesson K-Frame (2½” barrel)
Left Handed. Natural Tan Leather construction. Horizontal carry. Thumb Break Retention. Comfortable suede shoulder harness. Features an off side dump pouch for 12 extra rounds of .38 or .357. LIKE NEW condition…$55 Shipped...