Is there a reason the Cache Rebuilder hasn't been finished yet although it should have been finished months ago? (Same holds true for an extended export function.)
For the HUD you can partly work around this issue by using "Filter by date" so you can get rid of the older hands BUT the tablescanner doesn't have an option like that.
Is it too much to ask for getting basic tools to maintain a database before you add the more fancy stuff (or support for a new room for that matter). Having to export and reimport a 60GB+ database seems a bit overkill only because you don't give us the (for ages promised) tools.