Reinstall and revise library questions

[Deeter]

I'm running the latest version 4 of Hoster and am upgrading/replacing my hard drive. I want to make sure I don't muck something up since Hoster is working fine for the most part.

I have a number of KMA files and some zip files with the kmh file for each. Over time I have done some database clean-up- deleting song duplicates or ones that never get sung.
When they were deleted from the song database, the actual files (kma or zip)- were they deleted as well? Or just the pointer? Or the pointer and the kmh file? I don't want to rebuild the database and drag all the old ones in that I have removed.
Since I have kma files in a folder, then sub-folders with zips and kmh files, can I move all the above into one folder and rebuild the database after the move?

ThIA