Providing I understood you right and this:
is the case, my bet is that it can’t be done in BPs as is, and it is the reason for this plugin to exist:
It seems to be doing exactly what you’re looking for. On the other hand, you can always change the logic of what you’re trying to achieve.
I imagine it as 2 overlapping bodies:
Where the smaller one simulates physics and the CAC’s actor also has a static mesh that must collide with everything bar the CAC’s owner.
But somehow I feel I missed the point of this exercise 