@vlENIGMAlv Tremayne has beat me to it but, yes, Sim Blender should work. I don’t know how effective it is in such an extreme situation, but it does have options that you’re looking for.
However, you should keep in mind that packaging a lot into the Lots and Houses Bin, then placing it back into the same neighborhood, will create clones of every Sim connected to that household via memories and family trees.
What you have right now are clones of original Sims, which were deleted and hidden. So keep in mind that this can be a messy process. I highly suggest not doing this again and, if you wish to save a lot, that you move out the family before packaging it.
If you have a backup made before you first packaged the lot and the family, I highly suggest restoring that instead.
