Nice start to the faceset.
Now, is it overkill? Yeah!
Part of making a good faceset is spending the time to edit it down to only what you need.
E.g.
Here's 5 pictures, where you only need one
The more time you spend making a good, balanced faceset, the quicker the training, and the better the final result. Now if it was me, I would use 2-3k of these faces maximum. Then figure out angles/expressions that are missing, and add new sources with these.
Keep going, you can make it better.