So, you found the place
Ok, let's see... The thing with the wants and fears: there's nothing I can do in that department (yet), because I know nothing about changing want tables.
The free object for initially cleaning out creature memories... It wouldn't need to be an 'object' per sé; just a global controller such as my "No Trash Memories" mod would do the trick. I didn't include these memories in NTM for a reason, but that doesn't mean I can't make a similar object for creature memories, just for those that want it.
Finally, the object for cleaning individual sims' memories at a cost: I'll look into that one too, but as the author/creator, I'd reserve the right to name it whatever *I* want (just so there's something 'BO' about it ).
So, apart from the want/fear suppression, there's a good chance I can do these things you suggest, friend.
There's one problem, though: only the second one (the vampire wants thingy) deals with want tables, and I can look at it as much as I want, I still don't understand one single iota of it!
Finding the BHAVs dealing with individual wants, though, can be very hard, so I'm not looking forward to that option, either.
And with the name, you might actually be able to come up with a better name-idea than I could. Here's hoping this mod will work... creaturephobia sucks!