I’ve done some 78 to digital conversions. It can be done pretty easily and cost is modest. You just need
1) any vintage ceramic cart turntable that works and has a usable 78rpm stylus. I found one for $20 at a garage sale.
2) a decent quality a2d converter. I’ve used one by Art that can be had on Amazon for about $100. Maybe others there that cost even less that would do.
3) USB out to home computer running Audacity app to process and save to a file (freeware)
I have some sample files created this way if interested.