My brother has successfully scanned in slides on an Epsom V300 flat bed scanner. (after the dedicated slide scanner he had failed to work beyond windows 98.).
See the example Hale Bopp image (copyright my brother).
I’m not sure what the max. resolution of this scanner is, or what software jiggery pokery needs to happen after the initial scan.
With technology “improving” the whole time it might be worth just trying scanning on your printer!
Let me know via the BAA e-mail if you need to make use of the V300,