Heyo! Did you find a good solution as to how to put them together? I'm still working with a blank character 'cause I couldn't figure out how to assemble them, haha.
It's nearly impossible to show it to you and would require a true wall of text to explain it, but if you want you can send me a message on Discord (Vexoriette#2473) and I can explain it there for you :)
But beware, I'm working with Unity so if you use another software I'm not sure if I can help you out with that.