to reply to
>>6149287→ have some ideas you could try.
1] you coyuld do what one guy did with a busou shinki and use a 1/144 scale gundam 00 leg [pic related].
2] the gundam AGE Razor mod kit has legs that [with jury rigging a connecting peg to connet the two together]
an HLJ lin with the instruction is below.
http://hlj.com/product/HBJMAG1210EXNow i will have to warn you that, due to not owning a FA girl of my own, i cant guarrentee that these options will work - all i can say is that i hope that might give you some ideas.