Please contact me for more information. I have scanned and restored thousands of Kodachrome / Ektachrome 35mm slides and 35mm negatives over the years and use the latest Nikon Coolscan scanner. These machines are finicky and it took a while for me to master the correct configuration settings to get a really good scan.
$100 minimum job and $5 per edited slide/negative. I also scan medium format negatives, same cost and minimum.
You get the full 14-bit unedited 4000 DPI TIFF file along with my edited TIFF and a JPG.
Examples of my scans: