callan says:
I don’t think it would be strictly stronger, since she’d be putting herself at greater risk to use it. And I’m also willing to take some additional restriction to make it fair, if you have any suggestions.
But going with rules as written for now,
here’s what I’ve got.
Looks well until now.
The way I see it you have the two advantages of manipulating objects and not being bound by the range restriction of the familiar feat opposed by the one disadvantage of putting yourself at risk.
I'd suggest limiting the feat by only be able to use it once per day for ten minutes. I think this way your and Miss Sadie's feats are different enough so that each feat has their unique strengths and weaknesses