I have a similar project in the works now. I was using single exposures to create finished edits but I had shot five per item and I had moved the focus point about. I edited five photos when I realized that I could help the focus by taking this other route. I open all RAW photos in Affinity Photo with the Focus Merge menu, which gives me the option to auto align the files, correct the sharpness with specific source layers and then edit it in the Develop persona and then export it as a flattened JPG.