>>7306852I got a few ideas.
1) each figure has a piece of what is essentially just snap on armor for her. Make the center body piece hollow so it can fit around her. I can see this having possibility issues though
2) Go kaiju buster mode and make the BAF fuck huge like the old old Legends Sentinels and Giant Mans where and the Hisako fits inside the center body piece. Problem here is this would probably be expensive as fuck and while I love her I don't think she's anywhere near popular to push a line. But this is my preferred idea.