Abigale Whimsy

Hello all. I know that SMB is out of use nowadays but the dev kit is (was) freely available. I don't have much of an interest in making clothes for adults and only want to make them for kid avatars. I can (and currently am) make fitmesh clothes for the system avatar but I think i'd have better luck creating things for an actual child avatar. But the link for it is no longer working, is there a mirror somewhere? 🤔