Yes, you can JB Weld it. Clean it with denatured alcohol first then put the JB weld on and try to clamp it. Let it set for at least 24 hours then clean off the excess JB W and paint it with model paint or a Magic Marker.
How long it will hold is the question. Preparation of the broken places is critical. All oil, paint, dirt must be removed.
After that, hunt down one that's not broken.
Joe