Even if it were 500, you're looking at a much larger job than you think.

This has been discussed here on the BBS before by others who were saddled with similar responsibilities. While new hardware and software can improve things somewhat, it's still a huge job regardless of how good your tools are.

Doing the job properly: Carefully cleaning each slide, checking each image to make sure it was scanned with the best possible quality, color correcting (something that will require user intervention for every photo because each one will be faded a different amount), and making sure that the automatic software corrections didn't accidentally ruin a given photo...

A job like this, to be done properly, is measured in months, not days.