Working with scanned photos - best method for removing moiré pattern

Hello folks.

This summer I'm about to start a scanning task of multiple albums (that is for me and my family).
We are probably talking in the 200+ ballpark range of number of photos, if not more.

I have done similar tasks before, and to achieve best possible result from scanning printed photos I've used the following method:

• Scanning the photography using Vuescan, no filter settings.
• THen a second scan, now using the filter for removing moire pattern. This also make the image more blurry.
• THen I use Gimp having the second image as a layer above the first
• With Gimp, I then create another copy of the filtered layer, then use the "find edges" and then do the steps in order of making this a mask (similar to alpha channel) of the filtered image.

This results in a composed image where the unfiltered scan is visible, but only in the sharp/edge part of the image. It get better result than filtering alone if the filtering and tuning in Gimp is done right (Gimp is king in this regards).

However as you may understand, it also means some part (along edges) of the image doesn't get fully rid of the moire patterns.

I therefore ask - do you know if there exist some software or filter (to Gimp) that create a better result? It have to work on Linux, that is an absolute demand - but since this are family photos and I'm doing this for archiving purposes I want to get the best quality as possible for the digital copy.

Thanks in advance