Mannequin questions

[robertintx]

I realize I've ask questions about getting different arms or legs etc. to
help change their look or sex ability..
I've come to the conclusion that if you buy two mannequins from the same
seller you'd have interchangeable parts, so to speak.
Now my question.. plastic or fiberglass can be repaired pretty easy, why couldn't you just cut the arm if it's bent and repair with kit's sold at auto repair shops ? In fact, it seems you could use these repair kits to help with inserts, change the direction of the head or many other things.
Has anyone tried this or is it feasible at all ??