The more the merrier and you don't need any animation or drawing skills tbh.
I'm running a collab where each person draws a single frame (or more if you want) by tracing an image from my pre-rendered "default" animation.
Here's the google drive folder with all the frames. Choose a frame that hasn't been redrawn or renamed, draw over it, then replace the old file with your new file. Add _yourname to a file to reserve it (e.g. 00022_cyansandwich).
You can see some redrawn frames in the drive as examples
Sangelnew
Ay que bueno que aun esta en marcha porque estoy planeando hacer otro dibujo pero este no sera un simple dibujo sino que sera hecho con plastilina :)
CyanSandwich
You're gonna sculpt one IRL? sounds cool