I started down this same road, but quickly realized that scanning an archive of thousands and thousands of images, four or five at a time "in bulk --- bulk??? HaH!" would probably take me the rest of my life to do. How long would that Nikon scanner take to scan the 5 images in the neg film strip at "archive" resolution? A wild guess -80 sec sec each???, so say five negative strip = 400 sec or nearly 7 minutes. Add in a minute to take the strip out of the sleeve and load it, a minute to put those negs back into their sleeve, and we're up to 9 minutes. So every hour, he can maybe do maybe 35 negs per hour. He said he had about 10,000 negatives. That is 285 hours. If you did this every evening for three hours, it would take you 95 days - over 3 months to finish. And then you'd have those 10,000 to 15,000 slides to tackle!
I had about 12,000 slides and negs. I sent them to a scanning service named Scan Cafe who scanned them in India for, as I remember, about $2,000. I received 4000 dpi scans of acceptable quality in about 5 weeks. The ones that I may want to print and frame in larger size, I'll rescan myself on my Konica-Minolta scanner and really work them in the scanning software and Photoshop/Lightroom.
Life is too short and photography is too important to me, to spend months and months turning something that I love, ie, photography into pure unadulterated drudgery.